65 results about "Plasma ignition" patented technology

The invention discloses a modular multi-fuel industrial burner plasma igniter with an efficient cooling structure. The modular multi-fuel industrial burner plasma igniter comprises an ignition module, an efficient cooling module, a fuel adaptation module and an intelligent control module. A plasma arc generator is arranged in the ignition module and is used for generating a high-temperature ignition source; the efficient cooling module adopts a multi-layer surrounding type flow channel design, and active heat management of the ignition module is achieved through forced circulation of a cooling medium; the fuel adaptation module supports rapid switching and stable supply of various fuels such as natural gas, fuel oil and biomass gas through standardized interfaces and pipelines; the intelligent control module integrates ignition control, fuel switching and thermal management strategies, monitors the system state in real time and automatically adjusts operation parameters. By means of the modular architecture and the efficient cooling technology, the problems that a traditional plasma igniter is prone to overheating damage, poor in adaptability and difficult to maintain under the high-temperature and multi-fuel working conditions are solved.

The invention provides an embedded multifunctional plasma flame stabilizer, and relates to the technical field of plasma ignition combustion supporting. The embedded multifunctional plasma flame stabilizer comprises an evaporative flame stabilizer and an embedded exciter, wherein the evaporative flame stabilizer is provided with a combustion area defined by apron boards; the embedded exciter is installed on the surface, facing the combustion area, of the apron board. The exciter is directly integrated on the inner side of the skirt board of the flame stabilizer, and the space utilization rate and the system integration degree are improved on the premise that the aerodynamic configuration and the installation mode are not changed. The discharge area of the exciter covers the backflow area, active free radicals can be generated and local heat can be released under complex and changeable conditions, the reaction activity of mixed gas is enhanced, the ignition delay time is shortened, the ignition boundary is expanded, meanwhile, atomization and mixing are improved, the combustion efficiency is improved, and flame quenching is restrained. The device has ignition assistance, continuous excitation and active thermochemical regulation and control capabilities, and is suitable for a compact combustion chamber environment.

The invention discloses a circuit integration device for plasma ignition based on direct current power supply, relates to the field of plasma ignition, and aims to solve the problems that an existing plasma ignition technology cannot be directly compatible with aviation low-voltage direct current and is poor in reliability. A core electronic function module comprises a high-frequency resonance inversion topological unit, an energy driving adjustment topological unit, a full-wave rectification topological unit, a control unit, an arc striking unit and an energy storage unit. The high-frequency resonant inversion topology unit converts input direct current into high-frequency alternating current pulse; the energy driving and adjusting topological unit drives and adjusts the high-frequency resonant inversion topological unit, so that the alternating voltage output by the high-frequency resonant inversion topological unit is increased to 400-430V; the full-wave rectification topological unit converts the alternating current voltage output by the high-frequency resonance inversion topological unit into stable direct current high voltage and supplies power to the control unit, the arc striking unit and the energy storage unit.

The application discloses a strut plate embedded plasma igniter suitable for a scramjet engine and relates to the technical field of the scramjet engine.The strut plate embedded plasma igniter comprises a strut plate main body, and fuel main flow channels, oxygen main flow channels and an embedded channel are arranged on the strut plate main body; a plurality of fuel injection holes are arranged on the side wall of the fuel main flow channel; the oxygen main flow channel is in communication with the embedded channel, and an anode core is arranged in the embedded channel; a detachable head is arranged at one end of the embedded channel facing a combustion chamber, and a plurality of communication holes are arranged on the detachable head. A circular axis-symmetrical hypersonic combustion chamber is connected to the outside of the strut plate main body. The strut plate embedded plasma igniter suitable for the scramjet engine has the advantages of a stable combustion strut plate and a plasma igniter, has the characteristics of good insulation and partial stable combustion, and can ensure stable ignition of the axis-symmetrical supersonic combustion chamber.

The invention belongs to the technical field of combustion equipment, and relates to a plasma ignition system and a using method thereof. The system comprises a plasma generator, a combustor, a power supply system, a carrier working medium system and a cooling water system, an anode and a cathode of the plasma generator are coaxially arranged to form an electric arc cavity and a surrounding cooling water cavity, and the anode is provided with a compressed air inlet and a plasma jet outlet; the plasma combustor is sequentially and coaxially sleeved with a first-stage center cylinder, a second-stage combustion cylinder and an outer wall cylinder from inside to outside, the first-stage center cylinder communicates with the jet flow outlet, and the outer wall cylinder is provided with a pulverized coal inlet; the power supply system supplies power to the generator through the isolation transformer and the rectifier cabinet. The carrier working medium system supplies air to the compressed air inlet; the cooling water system enables demineralized water to circulate in the cooling water cavity. Efficient and stable ignition and low-nitrogen combustion of pulverized coal are achieved, the ignition reliability is remarkably improved, the system service life is remarkably prolonged, and the operation automation level is remarkably improved.

The invention belongs to the technical field of remote plasma sources, and discloses a remote plasma source system based on 172nm ultraviolet light auxiliary starting, which comprises a remote plasma source and an ultraviolet light pre-ionization device at a gas inlet of the remote plasma source, the ultraviolet pre-ionization device comprises a shell, the shell is provided with a gas flow channel and a sealed gas cavity which are separated by a light-transmitting partition plate, the sealed gas cavity is filled with xenon, and the gas flow channel is communicated with a gas inlet of a remote plasma source and used for circulation of process gas; the positive electrode plate and the negative electrode plate are arranged on two opposite sides of the shell and are used for exciting the xenon to generate 172nm ultraviolet light when alternating voltage is introduced; the ultraviolet light can penetrate through the light-transmitting partition plate to enter the gas flow channel; the mesh electrode is arranged in the gas flow channel and is used for being matched with the ultraviolet light to carry out pre-ionization treatment on the process gas when the mesh electrode is electrified; the method has the advantages that plasma starting of high-impedance gas is efficiently achieved, the starting success rate and the process stability are improved, and meanwhile pollution is avoided.

A substrate processing apparatus, a substrate processing method, and a method of fabricating a semiconductor device are provided. The substrate processing method includes providing a process gas, generating a preliminary etchant, which includes a first etchant and a second etchant, from the process gas through plasma ignition, generating a process etchant by controlling a composition ratio of the preliminary etchant, and performing a selective etching of the substrate with the process etchant.

The application provides a plasma electrically generated fire preparation system, process and application, the system comprises a working condition detection module, a multi-layer grid discharge structure module, a discharge parameter decision module and a high-voltage discharge control module; the working condition detection module is used for real-time detection of the gas working condition parameters in the ignition cavity; the multi-layer grid discharge structure module is arranged in the ignition cavity and is used for forming a plurality of metal mesh grid electrodes with optional spacing; the discharge parameter decision module is used for determining the ignition discharge parameters according to the current gas working condition parameters; the high-voltage discharge control module is used for applying high-voltage pulse voltage to the selected metal mesh grid electrode according to the ignition discharge parameters to complete the discharge fire generation process; the application sets the multi-layer metal mesh grid electrode and combines the gas working condition parameters to make self-adaptive decisions on the discharge layer and the ignition voltage, improves the success rate and stability of the plasma ignition, and enhances the adaptability of the system to the complex gas working condition changes.

A plasma ignition and combustion-supporting head excited by a central sliding arc discharge is disclosed. A fuel nozzle is located within a combustion head mounting base, maintaining a discharge distance between the fuel nozzle outlet discharge end face and the inner ring end face of the combustion head mounting base. A high-voltage electrode is located on a ceramic electrode mounting base, maintaining a discharge distance between the high-voltage electrode inlet end face and the fuel nozzle outlet end face. This invention achieves plasma discharge through the inner ring of the combustion head mounting base and the high-voltage electrode. A rotating sliding arc is formed by a first-stage strong swirling current. Under the action of a convergence segment at a specific angle, the arc is elongated towards the central region of fuel atomization, defining the discharge area. The arc development and breakdown are achieved by the incoming flow, placing the arc in the optimal ignition and combustion-supporting position, which is beneficial for the contact and combustion of the arc and fuel. The densely distributed discharge arc in the fuel atomization area improves combustion efficiency, reduces pollutant emissions, better achieves ignition and combustion-supporting effects, increases combustion stability, and widens the combustion range of the combustion chamber.

The invention discloses an ammonia catalytic cracking device adopting a plasma ignition technology and an operation method, and belongs to the field of hydrogen production through ammonia decomposition, and the ammonia catalytic cracking device mainly comprises a plasma ammonia burner, a high-temperature mixer, a catalytic ammonia cracking module, a heat exchange module and a hydrogen separation and purification module. The plasma ammonia burner performs plasma discharge ignition at the starting stage, assists ammonia combustion to generate high-temperature tail gas, the high-temperature tail gas is mixed with liquid ammonia spray to form high-temperature mixed gas, the high-temperature mixed gas is introduced into the catalytic ammonia cracking module, and hydrogen-rich cracking gas is generated under the action of a catalyst; plasma discharge is not needed in the working stage, and hydrogen-rich pyrolysis gas is introduced into the combustor to be directly combusted. The pyrolysis gas heats liquid ammonia in the heat exchange module to improve the energy utilization efficiency of the system, and the cooled pyrolysis gas enters the separation module to purify hydrogen. According to the ammonia cracking device, high-temperature tail gas generated by ammonia-rich combustion of the combustor is directly mixed to preheat ammonia gas, a two-phase heat exchanger does not need to be independently arranged, the device is compact, the energy utilization rate is high, and no harmful combustion tail gas is discharged.

The utility model discloses an electrostatic chuck, comprising an electrostatic chuck body which is provided with an electrostatic adsorption surface which is used for fixing a wafer and is provided with a mounting groove, and the mounting groove is communicated with the outside; the adsorption removing assembly is provided with a contact end, the contact end is arranged in the mounting groove and can move in the thickness direction of the electrostatic chuck body, and when the contact end abuts against a wafer, the contact end is used for removing the adsorption force between the electrostatic adsorption surface and the wafer. According to the utility model, when plasma ignition is abnormal, the contact end can move along the thickness direction of the electrostatic chuck body to directly abut against a wafer, so that charges on the wafer can be quickly led out, the wafer is prevented from staying in equipment for a long time, and the risk of wafer damage is reduced.

The invention provides a welding machine (100) and a method for igniting a plasma main arc (2). The welding machine (100) comprises: a tungsten electrode (101), a plasma nozzle (102), and a control device (120) configured to perform a plasma ignition sequence, which includes at least: Applying (S10) a first and second potential (V1, V2) to generate a pilot arc (1); Applying (S30) the second potential (V2) to a workpiece electrode (104) connected to a workpiece (4); Switching off (S40) the second potential (V2) to generate a main plasma arc (2); Check (S50) whether the main plasma arc (2) is burning and, if not, carry out (S60) a measure stage comprising reapplying (S61) the second potential to the plasma nozzle (102) and switching off (S62) the second potential (V2); and Check (S70) whether the action stage was successful and, if not, carry out (S110, S130) at least one further action stage, each comprising switching on an additional voltage source (131, 132).

The invention discloses a Y-shaped dielectric barrier plasma ignition device and an operation method thereof. The Y-shaped dielectric barrier plasma ignition device comprises a Y-shaped combustion structure. The Y-shaped combustion structure comprises a Y-shaped combustion tube, a dielectric barrier discharge assembly and a high-voltage power supply. The Y-shaped combustion pipe comprises two inlet branch pipes and an outlet main pipe, and the dielectric barrier discharge assembly is arranged on at least one inlet branch pipe and connected with the high-voltage power source. According to the Y-shaped dielectric barrier plasma ignition device, active particles such as H, O and OH can be efficiently generated and transported, and reliable and stable ignition of ammonia-air mixed gas is achieved under low energy consumption.

This invention relates to the field of plasma ignition and combustion technology, and particularly to a low-concentration gas burner with plasma-assisted combustion and its operation method, which prevents backfire. The technical solution includes a primary path assembly comprising a first flame-arresting cyclone and a plasma discharge section. The plasma discharge section is located downstream of the first flame-arresting cyclone and includes a central anode and a grounding electrode sleeve, which are coaxially arranged, forming a discharge gap between them. It also includes a secondary path assembly comprising a secondary air inlet sleeve and a second flame-arresting cyclone. This invention integrates multi-stage composite flame arrest, cyclone stabilization, Laval tube acceleration, and plasma ignition through coaxial nesting, resulting in a compact structure, high flame arrest efficiency, good ignition and flow field coordination, reliable operation, and strong adaptability to various operating conditions.

The utility model provides a plasma ignition system for a coal-fired boiler. The plasma ignition system for the coal-fired boiler comprises a coal-fired boiler body, and a plasma burner communicated with a hearth of the coal-fired boiler body is arranged in the coal-fired boiler body; the plasma generator penetrates through the coal-fired boiler body, communicates with the plasma combustor and is used for generating high-temperature plasma jet flow and introducing the high-temperature plasma jet flow into the plasma combustor; a coal outlet of the coal mill communicates with the plasma combustor through a pulverized coal conveying pipeline, and the end, close to the coal outlet of the coal mill, of the pulverized coal conveying pipeline communicates with an air supply pipe; and the combustion-supporting pipeline penetrates through the coal-fired boiler body, communicates with a hearth of the coal-fired boiler body and is used for introducing combustion-supporting gas into the hearth of the coal-fired boiler body. Compared with the mode that a coal-fired boiler is ignited through an oil gun in the prior art, the high-temperature plasma jet flow generated by the plasma generator is used for igniting the pulverized coal, the fuel oil consumption is reduced, and the ignition efficiency is improved.

The present disclosure relates to the field of plasma ignition, and disclosed are a plasma ignition system, method and apparatus, an electronic device, and a storage medium. The main technical solution comprises: an ignition module, an electrical module, a gas supply module, a driving module, a cooling module, and a control module; the ignition module is placed on the wall of a boiler; the electrical module, the gas supply module, the driving module, the cooling module and the control module are separately connected to the ignition module; pulverized coal is placed in the boiler; the driving module, the gas supply module, the cooling module and the control module are separately connected to the electrical module; and the gas supply module and the cooling module are separately connected to the control module. Compared with the related art, in embodiments of the present disclosure, the plasma ignition system is used to generate plasma flame to ignite the pulverized coal in the boiler without using fuel oil, thereby reducing ignition costs.

The invention provides a fan mill lignite boiler plasma ignition method, system and related device, the fan mill lignite boiler plasma ignition system comprises a plasma pulverized coal burner and a plasma generator, and the plasma generator is obliquely inserted and installed on the side face of a spray pipe of the plasma pulverized coal burner in the radial direction; the technical problem that the plasma generator cannot be axially installed due to the fact that the arrangement positions of the fan mill pulverized coal pipeline and the combustor are limited is effectively solved, and the plasma generator is particularly suitable for the special structure that the distance between a pulverized coal elbow and a combustor spray pipe is long and the height is inconsistent in a fan mill pulverizing system.

The invention relates to the technical field of engines, in particular to a plasma ignition combustion chamber and an aero-engine. The plasma ignition combustion chamber comprises an inner casing and an outer casing, and a first inlet and a first space which are communicated with each other are formed between the inner casing and the outer casing; a second inlet and a second space which communicate with each other are formed between the flame tube inner ring and the flame tube outer ring, a nozzle is arranged at the communicating position of the second inlet and the second space, and a plurality of openings are formed in the positions, close to the nozzle, of the flame tube outer ring and / or the flame tube inner ring in the circumferential direction of the flame tube at intervals; and the sliding arc plasma generating device is arranged at the position, close to the opening, in the first space and connected with the flame tube outer ring and / or the flame tube inner ring, the sliding arc plasma generating device comprises a positive electrode ring and a negative electrode ring which are arranged at an interval, and the opening is arranged right opposite to the minimum distance between the positive electrode ring and the negative electrode ring. The problems that an existing plasma ignition combustion chamber needs to depend on cross flame between adjacent nozzles to achieve ignition of a whole ring, and the ignition efficiency is low are solved.

The utility model discloses a plasma igniter. The utility model is applied to an outer cylinder of a burner, and is characterized in that the ignition component comprises a first sleeve which is arranged in the outer cylinder of the burner in a sliding and penetrating manner; the cathode bar is coaxially arranged in the first sleeve in a penetrating manner; the anode ring is arranged at the extending end of the first sleeve; the power supply unit is arranged at the extending end of the first sleeve; the adjusting part comprises a moving unit which is arranged on the burner outer cylinder and connected with the power supply unit; according to the utility model, the power supply unit is driven by the moving unit to reciprocate along the axial direction of the first sleeve, so that the cathode bar and the anode ring are driven to move close to or far away from the air outlet of the burner outer cylinder, and at the moment, the distance between the cathode bar and the air outlet of the burner outer cylinder is the burning distance of pulverized coal in the burner outer cylinder; therefore, the distance between the cathode bar and the air outlet of the combustor outer barrel is adjusted according to the ideal combustion distance of pulverized coal of different specifications, and the applicability is improved.

A system and method for improving the ignitability of fuel-air mixtures in gas turbine engines at high altitude and other difficult to ignite conditions. In the preferred embodiment, an advanced ignition system that is capable of applying high voltage, nanosecond duration pulses (< 100 ns) across an exciter to generate non-equilibrated discharges has been shown to improve ignitability as well as operate at lower temperatures and higher altitudes as compared to traditional ignition sources.

The application relates to the technical field of ship power device fault diagnosis, and discloses a marine gas turbine plasma ignition layered fault checking method, which is characterized by the double-loop structure of the plasma ignition system in a harsh marine environment, and comprises the following steps: firstly, a special safety test environment composed of an insulating box and an observation window is constructed; secondly, the normality of basic energy is confirmed by measuring primary electrical parameters; thirdly, based on the core idea of the control variable method, a hierarchical cross-exchange test process for the aviation plug interface and the igniter body is designed; and fourthly, by comparing the logical changes of the ignition state before and after the exchange, a complete decision tree model is constructed, so that the fault source can be accurately isolated to the control board card, the ignition cable or the igniter. The application converts the experience-dependent troubleshooting process into a standardized and visual technical operation process, and finally effectively solves the problems of low troubleshooting efficiency, high safety risk and great dependence on personnel experience in the prior art.

This application provides a radio frequency (RF) ion source, relating to the field of ion source technology. In this RF ion source, since the minimum input power of the first coil is greater than a preset value (i.e., the minimum input power of the first coil is not very small), the input power of the first coil is not very small. Therefore, the input power of the first coil can achieve plasma ignition, meaning that plasma ignition is independent of the input power of the second coil, thus allowing the input power of the second coil to be even smaller. Furthermore, since the input power of the second coil is positively correlated with the current of the first grid in the grid, the current of the first grid in the grid can be even smaller. And since the current of the first grid in the grid is the beam current generated by the RF ion source, the beam current generated by the RF ion source can be even smaller, thereby lowering the lower limit of the beam current generated by the RF ion source. Therefore, this RF ion source can widen the operating window of the beam current it generates.

The utility model discloses an automatic ignition component for ever-burning fire of an open flow pool, which comprises a PLC (programmable logic controller) master control and a high-voltage generator, the PLC master control is connected with the high-voltage generator through a first control wire harness and is connected with a power supply module through a second control wire harness, and the power supply module is connected with the high-voltage generator through a third control wire harness. The power supply module is connected with an electric control cabinet through a third control wire harness, the PLC master controller is connected with a flame sensor through a fourth control wire harness, the flame sensor is arranged above or inside a blowout pool, the high-voltage generator is connected with a plasma ignition rod, and the plasma ignition rod is connected with the PLC master controller. And an ignition burner is arranged at the head part of the plasma ignition rod. According to the long open fire automatic ignition assembly of the open flow pool, intelligent remote control ignition can be achieved, on-site operation of personnel is not needed, harm of poisonous and harmful gas can be effectively avoided, and the use safety is improved.

The invention discloses a plasma ignition device and an operation method and system, and belongs to the technical field of thermal power generation. The operation method comprises the steps that the DCS controller collects state information of the plasma generator, the plasma combustor, the isolation transformer, the rectifier cabinet and the cooling water system; according to the collected state information, whether the cooling water system and the rectifier cabinet operate normally or not is judged, if the judgment result is normal, analysis is conducted according to the monitoring result of the flame monitoring system, feature extraction is conducted according to the analysis result, and the state of the plasma generator is predicted according to the feature extraction result; if it is predicted that the plasma energy generator can be used, the combustion stability of the plasma combustor is judged; and according to the combustion stability of the plasma combustor, whether the plasma combustor operates or not is determined. According to the method, the operation complexity is greatly simplified, the possibility of insufficient ignition stable combustion capacity or ignition failure is reduced, and the equipment safety is guaranteed.

The utility model relates to the field of thermal power generation, in particular to a plasma ignition system of a coal-fired boiler. Comprising a coal-fired boiler, a plasma generator and the like. The hearth is communicated with a pulverized coal conveying pipeline, an air pipeline and a cooling air duct, the pulverized coal conveying pipeline and the air pipeline are arranged above the pulverized coal separation net, and the cooling air duct is arranged below the pulverized coal separation net. And the pulverized coal conveying pipeline is provided with a one-way valve and is communicated with the hearth at an angle of 45-70 degrees. And a high-temperature-resistant pulverized coal separation net is arranged above the positive and negative rotation coal blowing fan, and a vibration motor is arranged below the positive and negative rotation coal blowing fan. And the plasma generator is circularly distributed around the coal blowing fan and penetrates through the pulverized coal separation net. A second dustproof filter screen is arranged in the cooling air duct, an output port faces the coal blowing fan, and efficient ignition and stable operation are achieved.

This invention discloses a small-scale municipal solid waste incineration system based on plasma coupling, comprising an incinerator body, a feeding assembly, a plasma ignition torch, a propulsion assembly, and a flue gas outlet. The incinerator body has a feeding inlet at one end and a flue gas outlet at the other end. A feeding assembly is installed at the feeding inlet, and a propulsion assembly is located near the feeding inlet on one side of the incinerator body. Several plasma ignition torches are mounted on the incinerator body. This invention uses plasma ignition torches as the core ignition component. Plasma possesses high temperature and high activity characteristics, enabling rapid ignition of waste, solving the problems of slow ignition speed and unstable ignition in traditional ignition methods. Simultaneously, the plasma ignition torches are respectively positioned on the furnace walls of the first and second furnace bodies near the flue gas outlet, and with the precise gas supply from the combustion-supporting assembly, complete primary combustion of waste and secondary incineration of flue gas are achieved.

The utility model provides an ignition stable combustion pulverized coal burner, which belongs to the technical field of thermal power generation and comprises a heating component, a pre-combustion component and a flame extension tube. The heating assembly comprises a heating pipe, a heating pipe heat preservation layer, a copper pipe and a heating pipe shell. The pre-combustion assembly comprises a pre-combustion chamber, a secondary air inlet pipe, a secondary air cyclone, a pre-combustion chamber fire-resistant layer and a pre-combustion chamber heat preservation layer. According to the ignition stable combustion pulverized coal burner, ignition starting and stable combustion of pulverized coal fuel under the condition of a cold furnace can be achieved, fuel oil, fuel gas or electric energy does not need to be used as auxiliary energy in the operation process, a fuel oil burner and a plasma ignition device can be completely replaced, the ultralow-load stable combustion and flexibility adjusting functions of a power plant boiler can be achieved, and the service life of the power plant boiler is prolonged. And fuel oil does not need to be used as fuel in a thermal power plant.

The invention provides an externally-attached multifunctional plasma flame stabilizer, and relates to the technical field of plasma ignition combustion supporting. Comprising an evaporative flame stabilizer and an externally-attached exciter. The evaporative flame stabilizer is provided with a combustion area defined by apron boards, and the apron boards are provided with notches penetrating through the inside and the outside. And the externally attached exciter is embedded into the notch. According to the design, on the premise that the aerodynamic shape and the internal flow field of the flame stabilizer are not changed, high integration of the ignition function and the flame stabilizing function is achieved, occupation of the combustion area space and interference of main airflow are avoided, and the device compactness and the engineering applicability are improved. A gliding arc discharge plasma exciter is adopted, non-equilibrium plasmas can be generated under the atmospheric pressure and act on a backflow area, ignition reliability is enhanced, fuel atomization and evaporation are promoted, the ignition boundary is expanded, flame quenching is restrained, the device is suitable for poor working conditions such as low equivalence ratio, low temperature, low pressure or high flow speed, and jump from passive flame stabilization to active intensified combustion is achieved.

The invention relates to the technical field of thermal power plant plasma ignition equipment detection, in particular to a plasma generator leakage detection device and a detection method thereof.The detection method comprises the steps that a front-end data detection assembly monitors the state of a plasma generator in real time and returns a signal, and an edge computing gateway preprocesses original data in the received signal; signal interference is removed, an LSTM neural network model and a random forest model are trained through AI, the two models are trained, fused and deployed, the leakage risk level is judged, a terminal touch display device provides data display and calling functions, and alarm and linkage control are achieved. According to the leakage detection method for the plasma generator, under the hardware support of the leakage detection device for the plasma generator, early warning, accurate judgment, intelligent linkage, automatic grading alarm and terminal execution are realized; the problems of easy false alarm, lack of pre-judgment capability and weak anti-interference capability in the cooling water leakage detection technology of the plasma generator for ignition of the thermal power plant are effectively solved.

This invention discloses an integrated device for intelligent water leakage protection and image flame monitoring in a plasma ignition system, relating to the field of plasma ignition safety monitoring in thermal power boilers. The device consists of a PLC intelligent water leakage protection module, a plasma generator group, a high-definition image flame probe group, a multi-channel hard disk recorder, and a wall temperature monitoring system. The PLC collects the cooling water inlet and outlet pressure, flow rate, and arc current and voltage of each corner of the plasma generator. A two-level algorithm identifies cathode leakage and anode burnout, cutting off the arc power supply and closing the cooling water valve at the faulty corner within 3 seconds, while maintaining operation in the remaining corners. The high-definition probes are equipped with independent cooling air circuits, and the video signals are centrally recorded and displayed. Wall temperature monitoring uses TCK-type thermocouples with an over-temperature alarm threshold of 400℃. All signals are integrated into a DCS system. This invention integrates water leakage protection, flame image monitoring, and wall temperature monitoring into one unit, improving the comprehensiveness and response speed of plasma ignition safety monitoring.