Cabinet type modular tubular low-temperature plasma generator

Abstract

The invention provides a cabinet type modular tubular low-temperature plasma generator which comprises a cabinet, and a strong current control plate, a weak current control plate, a hundred nanosecond direct-current high-frequency high-voltage power supply plate, a modular tubular low-temperature plasma generator plate, a cabinet air conditioner plate, a touch display screen and a controller plate are arranged inside and outside the cabinet. The strong current control plate conveys strong current to the weak current control plate and the cabinet air conditioner plate, a plurality of power modules are arranged in the hundred nanosecond direct-current high-frequency high-voltage power supply plate, and a plurality of modularized tubular low-temperature plasma generators electrically connected with the power modules are arranged in the modularized tubular low-temperature plasma generator plate. The weak current control plate transmits weak current to each power supply module, and the weak current control plate monitors cabinet data through a sensor and carries out visual display. The device has the beneficial effects that simple and efficient production of low-temperature plasmas can be realized under the condition of low energy consumption, compact design is realized, and the operation stability of equipment is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of advanced oxidation technology equipment. Specifically, it relates to a cabinet-type modular tubular low-temperature plasma generator. Background Art

[0002] In the context where environmental protection is increasingly emphasized, the advanced oxidation technology has shown remarkable results in the fields of water purification and air pollution control. This technology is mainly applied to the wastewater treatment and drinking water purification processes. The water treatment process includes a three-stage treatment process: the primary treatment uses physical separation means such as sedimentation and filtration to remove suspended substances; the secondary treatment relies on the metabolic function of microorganisms for biochemical degradation. However, the water body still contains refractory pollutants after the first two-stage treatments and needs to be further treated through advanced treatment to meet the discharge standards. Among the three-stage treatment solutions, the advanced oxidation technology has become the mainstream choice due to its outstanding treatment efficiency. Among them, the ozone catalytic oxidation technology is widely used in the water treatment field due to its excellent oxidation ability. However, the core equipment of this technology, the ozone generator, has long had significant defects: high energy consumption, complex auxiliary systems, difficult maintenance, and expensive operating costs.

[0003] The tubular low-temperature plasma generator generates a plasma state gas, which contains a variety of mixed plasmas such as free electrons, high-energy ions, active free radicals, and nascent oxygen. In contrast, the ozone generator only generates a single gaseous molecule - ozone. Therefore, the low-temperature plasma has a higher electron volt energy density and a stronger oxidation-reduction potential, and has no secondary pollution, making it an ideal disinfectant in the future. With the continuous deepening of the environmental protection concept, the low-temperature plasma technology, as an innovative form of the advanced oxidation process, shows broad application prospects.

[0004] Therefore, there is an urgent need for a cabinet-type modular tubular low-temperature plasma generator that can simply and efficiently produce low-temperature plasma under low energy consumption conditions, has a compact design, and can greatly improve the operation stability of the equipment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to simply and efficiently produce low-temperature plasma under low energy consumption conditions, have a compact design, and greatly improve the operation stability of the equipment. To overcome the above defects of the prior art (or related technologies), the present invention provides a cabinet-type modular tubular low-temperature plasma generator.

[0006] The present invention provides a cabinet - type modular tube - type low - temperature plasma generator, including a cabinet. Inside the cabinet, there are a strong - electricity control board, a weak - electricity control board, a nanosecond - level DC high - frequency high - voltage power supply board, a modular tube - type low - temperature plasma generator board, and a cabinet air conditioner board. Outside the cabinet, there are a touch display screen and a controller board. The strong - electricity control board is electrically connected to the weak - electricity control board and the cabinet air conditioner board respectively. The weak - electricity control board is electrically connected to the nanosecond - level DC high - frequency high - voltage power supply board and the touch display screen and controller board respectively. The nanosecond - level DC high - frequency high - voltage power supply board is electrically connected to the modular tube - type low - temperature plasma generator board. The strong - electricity control board accesses an external power supply and transmits strong electricity to the weak - electricity control board and the cabinet air conditioner board through a control circuit. The nanosecond - level DC high - frequency high - voltage power supply board is provided with multiple power modules. The modular tube - type low - temperature plasma generator board is provided with multiple modular tube - type low - temperature plasma generators that are electrically connected to each of the power modules one by one. The weak - electricity control board transmits weak electricity to each of the power modules through a control circuit. The weak - electricity control board monitors the temperature inside the cabinet, the temperature of the cabinet air conditioner, the flow rate of compressed air, the pressure of compressed air, the oxidation - reduction potential of low - temperature plasma, current, voltage, and power through sensors and visualizes them on the touch display screen and controller board.

[0007] Compared with the prior art, the cabinet - type modular tube - type low - temperature plasma generator of the present application has the following advantages: In the present application, the strong - electricity control board, the weak - electricity control board, the nanosecond - level DC high - frequency high - voltage power supply board, the modular tube - type low - temperature plasma generator board, and the cabinet air conditioner board are partitioned in a compact space inside the cabinet, and the touch display screen and controller board are arranged outside the cabinet. By using the layer - by - layer link power - supply method of the strong - electricity control board, the weak - electricity control board, and the nanosecond - level DC high - frequency high - voltage power supply board, the overall power - supply stability and the equipment operation stability are improved. The modular tube - type low - temperature plasma generator board is used for safe and stable production of low - temperature plasma, without occupying additional space inside the cabinet by extra equipment. The energy consumption is reduced by limiting the number of boards, realizing simple and efficient production of low - temperature plasma under low - energy - consumption conditions, with a compact design and a significant improvement in the equipment operation stability.

[0008] In a possible implementation manner, the weak - electricity control board is provided with multiple switching power supply modules with a voltage of 24V and a current of 20A, and each of the switching power supply modules is electrically connected to each of the power modules one by one.

[0009] Compared with the prior art, adopting the above - mentioned technical solution can independently supply power to each power module through a 24V / 20A switching power supply module, achieve isolation between strong and weak electricity, avoid electromagnetic interference affecting stability, and ensure the output consistency of the power modules.

[0010] In a possible implementation, the input voltage of each of the power modules is a DC voltage of 24 - 30V, the working pulse width is 200 - 400ns, the high-frequency frequency is 15 - 18KHz, and the output DC high voltage is 20 - 25KV.

[0011] Compared with the prior art, adopting the above technical solution can optimize the ionization efficiency of the low-temperature plasma by setting the parameter combination of a working pulse width of 200 - 400ns, a high-frequency frequency of 15 - 18KHz, and a DC high voltage of 20 - 25KV.

[0012] In a possible implementation, an air path pipeline communicating with each of the modular tube-type low-temperature plasma generators is provided inside the cabinet, and compressed air that has been dust-removed, oil-removed, water-removed, and dried is input through the air path pipeline to each of the modular tube-type low-temperature plasma generators, and low-temperature plasma is generated and output to an external dosing device.

[0013] Compared with the prior art, adopting the above technical solution can avoid impurities in the compressed air from entering the plasma reaction zone inside the modular tube-type low-temperature plasma generator through the pretreatment of dust removal, oil removal, water removal, and drying, prevent electrode contamination or air path blockage, and ensure the plasma output purity and long-term stable operation.

[0014] In a possible implementation, the air path pipeline is made of 304 stainless steel.

[0015] Compared with the prior art, adopting the above technical solution can provide corrosion resistance, oxidation resistance, adaptability to high humidity and active particle environments for the air path pipeline, and avoid metal precipitation pollution.

[0016] In a possible implementation, the air path pipeline includes a main compressed air inlet pipeline, multiple compressed air input branch pipelines, a main low-temperature plasma output pipeline, and multiple low-temperature plasma output branch pipelines. The input end of the main compressed air inlet pipeline is connected to an external compressed air supply device. The input end of each of the compressed air input branch pipelines is connected to the output end of the main compressed air inlet pipeline. The output end of each of the compressed air input branch pipelines is connected to each of the modular tube-type low-temperature plasma generators one by one. The input end of each of the low-temperature plasma output branch pipelines is connected to each of the modular tube-type low-temperature plasma generators one by one. The output end of the main low-temperature plasma output pipeline is connected to the external dosing device.

[0017] Compared with the prior art, adopting the above technical solution can achieve parallel air supply and centralized output for multiple modular tube-type low-temperature plasma generators, support flexible capacity expansion without reconstructing the air path pipeline, and reduce the cost of large-scale application.

[0018] In a possible implementation manner, a pressure sensor control valve and a gas flow sensor control valve are respectively installed on each of the compressed air input branch pipelines, and a low-temperature plasma oxidation-reduction potential sensor is installed on the low-temperature plasma output main pipeline.

[0019] Compared with the prior art, adopting the above technical solution can form a closed-loop control through the pressure sensor control valve, the gas flow sensor control valve and the low-temperature plasma oxidation-reduction potential sensor, accurately adjust the parameters of each branch gas path, ensure that the low-temperature plasma performance output by different modular tubular low-temperature plasma generators is consistent, and avoid local overload or uneven efficiency.

[0020] In a possible implementation manner, an input end of the compressed air intake main pipeline is provided with a compressed air input connection flange adapted to the compressed air supply device, and an output end of the low-temperature plasma output main pipeline is provided with a low-temperature plasma output connection flange adapted to the dosing device.

[0021] Compared with the prior art, adopting the above technical solution can simplify the quick docking with external devices through the standardized flange interface, reduce the on-site installation complexity, and adapt to the application requirements of multiple scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a distribution schematic diagram of each plate inside the cabinet of the present invention; Figure 2 It is a front view structural schematic diagram of the outside of the cabinet of the present invention; Figure 3 It is a rear view structural schematic diagram of the outside of the cabinet of the present invention; Figure 4 It is a 45-degree right side view structural schematic diagram of the outside of the cabinet of the present invention; Figure 5 It is a 45-degree left side view structural schematic diagram of the outside of the cabinet of the present invention; Figure 6 It is a control schematic diagram of the PLC of the present invention; Figure 7 It is a working process schematic diagram of the present invention; Figure 8 It is a main circuit schematic diagram of the switching power supply module and the PLC of the present invention; Figure 9 It is an installation and pipeline structure schematic diagram of the modular tubular low-temperature plasma generator of the present invention; Explanation of the reference numerals: 1. Power control panel; 2. Weak current control panel; 3. Hundred nanosecond DC high-frequency high-voltage power supply panel; 4. Modular tubular low-temperature plasma generator panel; 5. Cabinet; 6. Touch screen and controller panel; 7. Low-temperature plasma output connection flange; 8. Compressed air input connection flange; 9. Cabinet air conditioning panel; 10. PLC; 11. Switching power supply module; 12. Compressed air input main line; 13. Compressed air input branch line; 14. Low-temperature plasma output main line; 15. Low-temperature plasma output branch line; 16. Modular tubular low-temperature plasma generator; 17. Gas flow sensor control valve; 18. Pressure sensor control valve; 19. Low-temperature plasma redox potential sensor; 20. Power module. DETAILED DESCRIPTION

[0023] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0024] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] See also Figures 1-5 The embodiment of the present application discloses a cabinet-type modular tubular low-temperature plasma generator, including a cabinet 5, wherein the cabinet 5 is provided with a strong current control panel 1, a weak current control panel 2, a hundred nanosecond DC high-frequency high-voltage power supply panel 3, a modular tubular low-temperature plasma generator panel 4 and a cabinet air conditioning panel 9, and the cabinet 5 is provided with a touch screen and a controller panel 6 on the outside, wherein the strong current control panel 1 is electrically connected to the weak current control panel 2 and the cabinet air conditioning panel 9 respectively, the weak current control panel 2 is electrically connected to the hundred nanosecond DC high-frequency high-voltage power supply panel 3 and the touch screen and the controller panel 6 respectively, the hundred nanosecond DC high-frequency high-voltage power supply panel 3 is electrically connected to the modular tubular low-temperature plasma generator panel 4, the strong current The control panel 1 is connected to an external power supply and transmits strong electricity to the weak electricity control panel 2 and the cabinet air conditioning panel 9 through the control circuit. A plurality of power modules 20 are arranged in the hundred nanosecond DC high-frequency high-voltage power supply panel 3. A plurality of modular tubular low-temperature plasma generators 16 electrically connected to each power module 20 are arranged in the modular tubular low-temperature plasma generator panel 4. The weak electricity control panel 2 transmits weak electricity to each power module 20 through the control circuit. The weak electricity control panel 2 obtains the internal temperature of the cabinet, the cabinet air conditioning temperature, the compressed air flow, the compressed air pressure, the low-temperature plasma redox potential, the current, the voltage and the power through the sensor monitoring and visually displays them on the touch display screen and the controller panel 6.

[0026] The low-voltage control board 2 obtains the monitoring and processing data of the nanosecond-level DC high-frequency high-voltage power supply board 3 and the modular tube-type low-temperature plasma generator board 4 through sensors and displays them in real time through a touch display screen; further, as Figure 2 shown, a touch display screen and a controller board 6 are provided on the cabinet 5. The touch display screen therein is connected to a feedback system, and the feedback system is used to monitor and alarm for faults in real time the temperature inside the cabinet, the temperature of the cabinet air conditioner, the compressed air flow rate, the compressed air pressure, the oxidation-reduction potential of the low-temperature plasma, the current, the voltage, and the power. The alarm information is displayed through its touch display screen.

[0027] An air pipeline communicating with each modular tube-type low-temperature plasma generator 16 is provided inside the cabinet 5. Compressed air that has been dust-removed, oil-removed, water-removed, and dried is input through the air pipeline to each modular tube-type low-temperature plasma generator 16 and low-temperature plasma is generated and output to an external dosing device. The air pipeline includes a main compressed air inlet pipeline 12, multiple compressed air input branch pipelines 13, a main low-temperature plasma output pipeline 14, and multiple low-temperature plasma output branch pipelines 15. The input end of the main compressed air inlet pipeline 12 is connected to an external compressed air supply device. The input end of each compressed air input branch pipeline 13 is connected to the output end of the main compressed air inlet pipeline 12. The output end of each compressed air input branch pipeline 13 is connected to each modular tube-type low-temperature plasma generator 16 one by one. The input end of each low-temperature plasma output branch pipeline 15 is connected to each modular tube-type low-temperature plasma generator 16 one by one. The output end of the main low-temperature plasma output pipeline 14 is connected to an external dosing device.

[0028] The air pipeline is made of 304 stainless steel material, which can prevent the oxidation of the pipeline by the low-temperature plasma.

[0029] The nanosecond-level DC high-frequency high-voltage power supply board 3 includes a number of power modules 20. The input voltage of the power module 20 is DC 24 - 30V, the working pulse width is 200 - 400 ns, the high-frequency frequency is 15 - 18 KHz, and the DC high-voltage is 20 - 25 KV.

[0030] See Figure 1 and Figure 9, the modular tube-type low-temperature plasma generator section 4 specifically includes several modular tube-type low-temperature plasma generators 16, a main compressed air inlet pipeline 12, several compressed air inlet branch pipelines 13, several pressure sensor control valves 18 installed on the compressed air inlet branch pipelines 13, several gas flow sensor control valves 17, a main low-temperature plasma output pipeline 14, several low-temperature plasma output branch pipelines 15, and a low-temperature plasma redox potential sensor 19 installed on the main low-temperature plasma output pipeline 14 for monitoring the redox potential of the low-temperature plasma.

[0031] See Figure 4 and Figure 5 , the input end of the main compressed air inlet pipeline 12 is provided with a compressed air input connection flange 8 adapted to the compressed air supply device, and the output end of the main low-temperature plasma output pipeline 14 is provided with a low-temperature plasma output connection flange 7 adapted to the dosing device. The compressed air input connection flange 8 is located at the middle position of the bottom of the right vertical surface on the side of the touch display screen and controller section 6 on the cabinet 5; the low-temperature plasma output connection flange 7 is located at the middle position of the bottom of the left vertical surface on the side of the touch display screen and controller section 6 on the cabinet 5.

[0032] See Figure 6 , the PLC 10 transmits and controls signals to the switching power supply module 11. The PLC 10 collects and processes data through sensors, controls the temperature inside the cabinet, the temperature of the cabinet air conditioner, the compressed air flow rate, the compressed air pressure, the redox potential, current, voltage, power, etc. of the low-temperature plasma, and then supplies the modular low-temperature plasma generator 16. At the same time, all information display and operations are displayed and controlled through the touch display screen. The power supply of the nanosecond-level DC high-frequency high-voltage power supply section 3 supplies power to the modular low-temperature plasma generator 16.

[0033] Specifically, turn the main control air switch of the modular low-temperature plasma generator 16 to the on position. First, turn on 5 control air switches, and the air compressor, air conditioner, sensors, etc. are already powered. Then, turn 20 unit air switches to the on position, and the modular low-temperature plasma generator 16 is already powered. At this time, the compressed air introduced through the main compressed air inlet pipeline 12 and the compressed air inlet branch pipelines 13 generates low-temperature plasma in the inner cavity of the modular low-temperature plasma generator 16 under high-frequency high-voltage conditions. The low-temperature plasma is output through the low-temperature plasma output branch pipelines 15, aggregated in the main low-temperature plasma output pipeline 14, and then output, thus realizing the entire working process of the modular low-temperature plasma generator 16.

[0034] See Figure 7, the control system provides high-frequency and high-voltage power to the modular low-temperature plasma generator 16 through the switching power supply module 11 and the power supply module 20. After the compressed air passes through the filter, it enters the modular low-temperature plasma generator 16, and low-temperature plasma is generated and output under the excitation of the high-frequency and high-voltage electric field.

[0035] Specifically, the control process of the embodiment of the present invention is as follows: Connect the AC 380V power to the strong electricity control board 1. The strong electricity control board 1 realizes protection through electrical components such as circuit breakers, contactors, and thermal relays. The control circuits of the strong electricity control board 1 are respectively connected to the PLC10 of the weak electricity control board 2 and several switching power supply modules 11. Several switching power supply modules 11 are respectively wired to several corresponding power supply modules 20, and several power supply modules 20 are respectively wired to several corresponding modular tube-type low-temperature plasma generators 16; at the same time, the weak electricity control board 2 connects wires to several switching power supply modules 11 and various sensors to monitor and process data, and outputs the real-time data to the touch display screen and the controller board 6. If a fault occurs, an alarm will be issued to facilitate the staff to handle it in time, thus realizing automatic control and operation.

[0036] See Figure 8 , which is the main circuit diagram of the switching power supply module 11 and the PLC10. It should be noted that the implementation methods of the switching power supply module 11 and the PLC10 in the embodiment of the present invention are diverse. Only one implementation method is given here as an exemplary illustration, and the present invention does not limit the specific implementation methods of the switching power supply module 11 and the PLC10.

[0037] See Figure 9 , in which several modular tube-type low-temperature plasma generators 16, the compressed air intake main pipeline 12, several compressed air intake branch pipelines 13, several pressure sensor control valves 18 installed on several compressed air intake branch pipelines 13, several gas flow sensor control valves 17, the low-temperature plasma output main pipeline 14, several low-temperature plasma output branch pipelines 15, and the low-temperature plasma oxidation-reduction potential sensor 19 installed on the low-temperature plasma output main pipeline 14 for monitoring the oxidation-reduction potential of the low-temperature plasma can be seen.

[0038] An embodiment of the present invention provides a device that can generate low-temperature plasma on-site and in large quantities. Under the control of the PLC 10, the cabinet-type modular tube low-temperature plasma generator needs to monitor in real time the temperature inside the cabinet, the temperature of the cabinet air conditioner, the flow rate of compressed air, the pressure of compressed air, the oxidation-reduction potential of low-temperature plasma, current, voltage, power, etc., and give a fault alarm. The PLC 10 is configured with a touch display screen to display the alarm signal on the touch display screen in real time, facilitating on-site personnel to solve the problem in a timely manner. The high-voltage control section 1 can make the device operate safely and stably through the control and protection functions of electrical components such as circuit breakers, contactors, intermediate relays, and thermal relays. The power supply module 20 is essentially an inverter and a transformer, and through the collaborative action of a rectifier bridge, IGBT, drive board, CPU, etc., it provides power output for the preparation of low-temperature plasma.

[0039] The modular low-temperature plasma generator 16 uses the micro-needle toroidal discharge method to excite compressed air in the high-frequency high-voltage discharge chamber to generate low-temperature plasma, and uses air cooling to cool the modular low-temperature plasma generator 16 to prevent the generated low-temperature plasma from decaying due to poor heat dissipation. In addition, the modular design can be assembled according to requirements, and different low-temperature plasma outputs can be achieved through modular integration.

[0040] The embodiment of the present invention involves an air pipeline, and temperature, pressure, flow rate, and oxidation-reduction potential sensors are installed on the air pipeline to achieve real-time monitoring and signal transmission with the PLC 10. The air pipeline is designed reasonably to save space, is flexible and easy to move and disassemble, and can be flexibly used in different spaces.

[0041] The embodiment of the present invention adopts a cabinet-type design, including a high-voltage control section 1, a low-voltage control section 2, a nanosecond-level DC high-frequency high-voltage power supply section 3, a modular tube low-temperature plasma generator section 4, a cabinet air conditioner section 9, a touch display screen and a controller section 6. The cabinet 5 has a front and rear door design, and different structures are designed according to different cabinets. The integrated space and different functional partition designs are compact and reasonable; this design combines the cooperation of disciplines such as machinery, structure, and electricity; the control system is configured with a touch display screen to achieve signal transmission and real-time monitoring. The high degree of integration of the entire system realizes automation. Through reasonable installation sequencing, the entire system operates safely, efficiently, and stably. Through the feedback system, real-time data can be clearly understood, which is safe and fast. At the same time, an alarm device is set for the entire system. When a fault occurs in the system, it can be understood in a timely manner and solved as soon as possible to avoid causing greater losses. Adopting high-precision and advanced technologies at home and abroad, it can work continuously, with a high concentration of low-temperature plasma generation, low energy consumption, safe and stable. The control and detection processes of this system have a high degree of integration, enabling the control circuit, power supply module 20, and modular tube low-temperature plasma generator 16 to work independently and coordinately in different functional partitions.

[0042] In the description of the present application, the descriptions with reference to terms such as "one embodiment", "some embodiments", "in this embodiment", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0043] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A cabinet-type modular tubular low-temperature plasma generator, characterized in that: The cabinet comprises a cabinet, wherein a strong current control panel, a weak current control panel, a hundred nanosecond DC high-frequency high-voltage power supply panel, a modular tubular low-temperature plasma generator panel and a cabinet air conditioning panel are arranged inside the cabinet, and a touch screen and a controller panel are arranged outside the cabinet, wherein the strong current control panel is electrically connected to the weak current control panel and the cabinet air conditioning panel respectively, wherein the weak current control panel is electrically connected to the hundred nanosecond DC high-frequency high-voltage power supply panel and the touch screen and the controller panel respectively, wherein the hundred nanosecond DC high-frequency high-voltage power supply panel is electrically connected to the modular tubular low-temperature plasma generator panel, wherein the strong current control panel is connected to an external power supply and connected to the cabinet air conditioning panel via a touch screen and a controller ... cabinet air conditioning panel The control circuit transmits strong electricity to the weak current control panel and the cabinet air conditioning panel. The hundred nanosecond DC high-frequency high-voltage power supply panel is provided with a plurality of power modules. The modular tubular low-temperature plasma generator panel is provided with a plurality of modular tubular low-temperature plasma generators electrically connected to each of the power modules one by one. The weak current control panel transmits weak electricity to each of the power modules through the control circuit. The weak current control panel monitors the internal temperature of the cabinet, the cabinet air conditioning temperature, the compressed air flow, the compressed air pressure, the low-temperature plasma redox potential, the current, the voltage, and the power through sensors and displays them visually on the touch display screen and the controller module.

2. The cabinet-type modular tubular low-temperature plasma generator according to claim 1, characterized in that: The weak current control panel is provided with a plurality of switching power supply modules with a voltage of 24V and a current of 20A, and each of the switching power supply modules is electrically connected to each of the power supply modules.

3. The cabinet-type modular tubular low-temperature plasma generator according to claim 1, characterized in that: The input voltage of each power module is 24~30V DC voltage, the working pulse width is 200~400ns, the high frequency frequency is 15~18KHz, and the output DC high voltage voltage is 20~25KV.

4. The cabinet-type modular tubular low-temperature plasma generator according to claim 1, characterized in that: The cabinet is provided with an air pipeline connected to each of the modular tubular low-temperature plasma generators, through which compressed air that has been subjected to dust removal, oil removal, water removal and drying treatments is input to each of the modular tubular low-temperature plasma generators to generate low-temperature plasma and output to an external dosing device.

5. The cabinet-type modular tubular low-temperature plasma generator according to claim 4, characterized in that: The gas pipeline is made of 304 stainless steel.

6. The cabinet-type modular tubular low-temperature plasma generator according to claim 4, characterized in that: The gas pipeline comprises a compressed air intake main pipeline, a plurality of compressed air input branch pipelines, a low-temperature plasma output main pipeline and a plurality of low-temperature plasma output branch pipelines. The input end of the compressed air intake main pipeline is connected to an external compressed air supply device, the input end of each of the compressed air input branch pipelines is connected to the output end of the compressed air intake main pipeline, the output end of each of the compressed air input branch pipelines is connected to each of the modular tubular low-temperature plasma generators one by one, the input end of each of the low-temperature plasma output branch pipelines is connected to each of the modular tubular low-temperature plasma generators one by one, and the output end of the low-temperature plasma output main pipeline is connected to the external dosing device.

7. The cabinet-type modular tubular low-temperature plasma generator according to claim 6, characterized in that: A pressure sensor control valve and a gas flow sensor control valve are installed on each of the compressed air input branch pipelines, and a low-temperature plasma redox potential sensor is installed on the low-temperature plasma output main pipeline.

8. The cabinet-type modular tubular low-temperature plasma generator according to claim 6, characterized in that: The input end of the compressed air inlet main line is provided with a compressed air input connecting flange matched with the compressed air supply device, and the output end of the low-temperature plasma output main line is provided with a low-temperature plasma output connecting flange matched with the dosing device.

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