245 results about "High voltage electrode" patented technology

The invention discloses a primary and secondary fusion pole-mounted circuit breaker state monitoring system and method, and relates to the technical field of power system automation. The system comprises a native signal acquisition module which is used for multiplexing an inherent electrical loop of a circuit breaker and acquiring a current signal of an opening and closing coil and a capacitive reactance change signal of a parasitic capacitor between a high-voltage electrode and a grounding end; and the edge analysis module is used for processing the signal acquired by the original signal acquisition module, including generating a mechanical health degree through feature extraction and state mapping, calculating an insulation aging index based on capacitive reactance change, and dynamically correcting a monitoring reference in combination with a digital twin model and a filtering algorithm. Non-auxiliary element monitoring is realized by multiplexing the inherent electrical loop of the circuit breaker, so that the service life of the monitoring system and the service life of primary equipment are completely synchronous, and elements do not need to be replaced in the whole life cycle; errors introduced by additional sensors are avoided by using the original electrical signals, and the mechanical fault recognition and insulation state evaluation precision is remarkably improved.

The invention provides a dielectric barrier discharge reactor with a double-dielectric coating structure, which belongs to the technical field of plasma discharge and dielectric engineering and comprises a DBD (dielectric barrier discharge) power supply, a gas supply and flow control module and a coaxial DBD reactor body. The body is of a coaxial hierarchical structure, a coaxial high-voltage electrode is arranged on the inner side of a hollow quartz tube, a first dielectric layer and a second dielectric layer are attached to and wrap the outer side of the hollow quartz tube to form a radial dielectric constant gradient, a grounding electrode wraps the second dielectric layer, and the two axial ends of the grounding electrode are sleeved with hoops to be clamped and fixed. Two ends of the quartz tube are hermetically connected with PTFE joints with air inlets and air outlets; the DBD power source is electrically connected with the high-voltage electrode through a high-voltage wire, and the gas supply and flow control module is communicated with the PTFE connector through a pipeline. The invention solves the problems of large energy loss and poor discharge stability caused by easy uncontrollable micro-gap between the external electrode and the dielectric tube of the existing dielectric barrier discharge reactor, and is suitable for the scenes of ozone generation, surface modification, plasma catalysis and the like.

The invention relates to the technical field of foam box waste recovery, and discloses a foam box production waste recovery device which comprises a support, and a feeding mechanism, a crushing mechanism and an extrusion mechanism are sequentially arranged on the support in the foam moving direction. The feeding mechanism comprises a base plate obliquely arranged on the support, the two ends of the base plate are rotationally connected with conveying rollers, the two conveying rollers are connected with the two ends of a conveying belt, a material taking needle is arranged on the outer side of the conveying belt, a suspension frame is arranged on the side face of the base plate, and a material guide groove parallel to the base plate is formed in the side, close to the ground, of the suspension frame. A high-voltage electrode plate is arranged on the side, close to the material guide groove, of the base plate, and after the material taking needle moves to the position between the high-voltage electrode plate and the material guide groove, static electricity is generated at the tip end of the material taking needle. By arranging the high-voltage electrode plate, the end of the material taking needle has static electricity, the material taking needle enables small-particle foam to directionally move along the material guide groove through the electrostatic adsorption effect, and flying of the small-particle foam is avoided.

The invention discloses a three-dimensional integrated environment treatment system for a highway tunnel, and relates to the field of tunnels, a high-voltage electrode is laid on a step surface, and a multi-layer staggered flow guide plate is arranged above the step surface; the multiple stages of step units are filled with negative ion mineral composite material layers. The UV-LED array is integrated above the multi-stage step unit and is used for emitting ultraviolet light with the wavelength of 254nm and / or 365nm; the multi-stage step unit is coated with the photocatalyst coating; the wall washing lamp is arranged at the side part or the bottom of the multi-stage step unit and is used for irradiating a gas-water mixture flowing through the step; the water circulation purification unit is arranged below the multi-stage step unit and used for collecting and purifying waterfall water flow, and purified water flows back to the first water outlet end to be recycled. According to the invention, light pollution, noise pollution and air pollution are treated as an integral system. And the integrity and the collaboration of the three-dimensional integrated environment treatment system are realized.

A power grid equipment insulation detection device comprises a switch cabinet, a high-voltage electrode and a contact are arranged in the switch cabinet, a front-end host is arranged on a cabinet body of the switch cabinet, the front-end host comprises a front-end host support assembled in the switch cabinet, a shell is assembled on the front-end host support, and the shell can be adjusted up and down by a certain angle. An ultraviolet sensor and an infrared sensor are arranged in the shell, signal acquisition coverage areas of the ultraviolet sensor and the infrared sensor cover a high-voltage electrode and a contact in the switch cabinet, and a central processing unit is further arranged on the front-end host bracket; and the front-end host transmits data to the management control end through network communication. The device is simple in structure and convenient to use.

The invention provides an electrostatic interference elimination method for an air negative ion product. The air negative ion product comprises a negative high voltage electrode and a relative electrode. Particularly, the negative air ion product is provided with a static electricity elimination mechanism which is characterized in that a negative high-voltage electrode and an opposite electrode are electrically connected through an electric conduction medium, so that high voltage formed between the negative high-voltage electrode and the opposite electrode is applied to the electric conduction medium, and negative charges are transmitted to the opposite electrode along the electric conduction medium to be neutralized with positive charges; and static elimination is realized. Furthermore, the obvious reduction of the negative ion concentration is taken as the basis for executing the static elimination mechanism, and the execution is ended after 3-10 seconds. Or the obvious reduction of the working current of the negative ion generator circuit is taken as the basis for executing the static elimination mechanism, and the execution is ended after 3-10 seconds. The problem of electrostatic interference can be effectively solved, the air negative ion product can efficiently, stably and continuously generate high-concentration air negative ions, and a positive health effect is generated for a product user.

The application relates to a preparation method and application of an electrode material binder with high ion conductivity and high-voltage resistance, wherein polyethylene oxide is dissolved in deionized water, stirred for 24 hours at room temperature, and a polyethylene oxide solution is prepared; lithium salt is added; a sodium carboxymethyl cellulose aqueous solution is mixed with the polyethylene oxide-lithium salt mixed solution, stirred for 12 hours at room temperature, and an electrode material binder is obtained; the electrode material binder is mixed with a high-voltage resistant additive, and a high-ion-conductivity and high-voltage-resistant electrode material binder is obtained. The positive electrode material prepared based on the electrode material binder with high ion conductivity and high-voltage resistance has high capacity and excellent cycle stability. The modified lithium-rich manganese-based positive electrode material prepared has high ion conductivity and high-voltage resistance, the discharge specific capacity of the modified lithium-rich manganese-based positive electrode material is up to 295.51 mAh / g or more, the capacity retention rate is 102.14% after 400 cycles, and the modified lithium-rich manganese-based positive electrode material has high capacity and high cycle stability.

The application provides a plasma wall friction drag sensor, which is in a sheet shape as a whole and comprises a high-voltage electrode (10), a grounding electrode (20), a charge collecting electrode (30) and an insulating base (60). The application also provides a plasma wall friction drag sensor system, which comprises the above-mentioned sensor, a high-voltage direct-current power supply (701), a current-limiting resistor (702), a first discharge resistor (703), a grounding terminal (801), a first voltage amplifier (802) and a first output terminal (803). Furthermore, the working process of the above-mentioned plasma wall friction drag sensor system is given. The application also extends the above-mentioned sensor and sensor system to form a double sensor, a multiple sensor and a sensor system. The application can solve the technical problem of how to measure the airflow wall friction drag at low cost, high frequency response and robustness.

The application discloses a high-energy extremely-short-pulse-width incandescent light source system based on argon, and relates to the field of air flow tests.The high-energy extremely-short-pulse-width incandescent light source system comprises a high-voltage electrode for performing arc flash when high voltage is applied, the high-voltage electrode comprises a high-voltage anode and a high-voltage cathode capable of performing arc flash when high voltage is applied, and the high-voltage anode and the high-voltage cathode have a predetermined distance; an argon supply device for supplying argon between the high-voltage anode and the high-voltage cathode; a light device and a condenser lens group oppositely arranged on both sides of the high-voltage electrode; a power supply for supplying power to a high-voltage energy storage device, wherein the high-voltage energy storage device is electrically connected with the high-voltage electrode; a control module for performing time sequence control on the high-voltage anode and the high-voltage cathode; and an input and output module connected with the control module and the power supply.The application uses argon instead of conventional air as an ionization medium in the high-voltage electrode, so that the extremely-short-pulse-width can be realized when arc flash occurs, and the electrode can be prevented from being oxidized and damaged.

The present application relates to a kind of catalyst synergistic plasma to regulate the method of active substance content in plasma activated water, belong to plasma activated water preparation technical field.The present application uses catalyst synergistic plasma to prepare the device of activated water, catalyst is filled in the discharge region of dielectric barrier discharge plasma jet device, the working gas flow of inlet pipe is adjusted by mass flowmeter, low-temperature plasma power is powered to high-voltage electrode, working gas starts discharge to generate plasma in discharge region, while, under the coupling catalysis of catalyst, the content of active substance in plasma is improved, the water body in plasma active substance activated water storage container is activated, and plasma activated water is formed;The content of active substance in plasma activated water is regulated by changing catalyst type and the component of working gas in gas cylinder.The present application improves the content of active substance in plasma working gas by catalyst coupling plasma, and the content of active substance in plasma activated water is improved.

The application discloses a standard capacitance voltage divider for measuring wide-range voltage and a measuring method. The standard capacitance voltage divider for measuring wide-range voltage comprises an insulating outer cylinder, an electrode module arranged at the upper end inside the insulating outer cylinder and a low-voltage arm module arranged at the bottom outside of the insulating outer cylinder. The electrode module comprises a high-voltage electrode, a low-voltage electrode and a shielding electrode. The high-voltage electrode, the low-voltage electrode and the shielding electrode are coaxially combined. The lower end of the shielding electrode is connected with a lower flange arranged at the bottom of the insulating outer cylinder through a supporting rod. The low-voltage arm module comprises a low-voltage arm external box and a low-voltage arm. The low-voltage arm external box is fixed at the lower end of the lower flange. The low-voltage arm is arranged in the low-voltage arm external box. The wide dynamic voltage can be reliably and accurately measured.

The application discloses a mass spectrometer for measuring a low-isotope-content sample and belongs to the technical field of mass spectrometers. The mass spectrometer comprises a receiving device and a signal processing unit. The receiving device comprises a vacuum cavity, a metal target, a vacuum plastic flash body, a high-voltage electrode plate, a vacuum glass window, a photomultiplier tube and a photomultiplier tube cover. The signal processing unit comprises a high-voltage stabilizer and a pulse amplifier. The application converts ions into secondary electrons through the metal target, provides voltage for the metal target and the high-voltage electrode plate by the high-voltage stabilizer to form a high-intensity electric field, accelerates the secondary electrons to bombard the vacuum plastic flash body to generate an optical signal, receives and converts the optical signal into a pulse signal by the photomultiplier tube through the vacuum glass window, and finally performs shaping, amplification and conversion processing on the pulse signal by the pulse amplifier. The application does not need to rely on imported super-high resistance resistors, realizes the localization of the receiving device of the mass spectrometer, and has the advantages of high signal conversion efficiency, strong anti-interference capability, stable and reliable measurement and the like.

Sensored insulation plug for a medium voltage or high-voltage separable connector in a national grid, and operable to insulate a connection element of the separable connector on an elevated voltage and to simultaneously detect and sense the elevated voltage. The sensored insulation plug comprises a) a plug body formed by a solidified insulating material, b) an externally accessible detection contact, c) a primary capacitor, operable as a high-voltage capacitor in a sensing voltage divider for sensing the elevated voltage, the primary capacitor having i) a high-voltage electrode; ii) a sensing electrode embedded in the plug body; iii) a dielectric formed by a first portion of the insulating material, and d) a testpoint capacitor, operable as a high-voltage capacitor in a detection voltage divider for detecting the elevated voltage and comprising i) the high-voltage electrode, ii) a testpoint electrode, embedded in the plug body and electrically connected to the detection contact, and iii) a dielectric formed by a second portion of the insulating material.

The invention is suitable for the technical field of aerospace aircraft environment control, and provides an environment processing system and method for an aerospace aircraft space, and the system sequentially comprises an air inlet, a first discharge cavity, an airflow channel, a second discharge cavity, a sensing module section and an air outlet in the airflow direction; an electrode I is arranged in the first discharge cavity, a high-voltage electrode in the electrode I is connected to a positive high-voltage power supply, and a grounding electrode is connected to a zero-potential reference; an electrode II is arranged in the second discharge cavity, a high-voltage electrode in the electrode II is connected to a negative high-voltage power supply, and a grounding electrode is connected to a zero-potential reference; the sensing module section is provided with a sensing module for detecting gas components; by adopting the bipolar ground design and through the synergistic effect of the oxidation stage and the reduction stage, air is efficiently treated, meanwhile, the concentration of by-products such as ozone can be effectively controlled, it is ensured that output gas meets the aerospace environment safety standard, and the device is compact in structure and easy to integrate with an existing environment control system.

The invention discloses an intelligent and smart jet plasma flow control device and method, and relates to the technical field of active flow control, the device comprises an aircraft surface, the aircraft surface is provided with jet holes in the Z direction, a dielectric barrier discharge exciter is arranged above the aircraft surface, and a corona exciter is arranged below the aircraft surface; the dielectric barrier discharge exciter comprises an insulating dielectric layer, the insulating dielectric layer is provided with a through hole in the Z direction, the through hole is the same as the jet hole in shape and size, a low-voltage electrode is tightly attached to the lower portion of the insulating dielectric layer, and a high-voltage electrode is tightly attached to the upper portion of the insulating dielectric layer; the corona exciter comprises a negative circular ring and a positive circular ring, a plurality of spray points are arranged at the top end of the negative circular ring, and an electrode net is arranged at the bottom of the positive circular ring. The device realizes three-dimensionally controllable jet flow in the direction, has the advantages of high mechanical efficiency, short response time, wide control frequency band and the like, and is flexible to control, exquisite and efficient in structural arrangement and high in practicability. Popularization and application are facilitated.

The invention relates to a dielectric barrier discharge-sliding arc coupled plasma reaction device and application thereof, and belongs to the technical field of plasma chemistry and efficient utilization of methane resources. The reaction device comprises a tubular reaction cavity, a high-voltage electrode arranged in the reaction cavity and a grounding electrode arranged on the outer side of the reaction cavity, and a dielectric barrier discharge structure is formed between the high-voltage electrode and the grounding electrode through the wall of the reaction cavity; at least two bent electrode parts which are arranged at intervals are arranged at the lower end of the high-voltage electrode, and gliding arc discharge is formed under the flowing action of reaction gas, so that dielectric barrier discharge and gliding arc discharge are simultaneously generated in the same reaction cavity. Through the coupling discharge mode, the synergistic effect of the high-energy density plasma and the large-volume uniform plasma is realized, and the activation efficiency and the reaction regulation and control capability of low-carbon alkane molecules can be effectively improved. The device is simple in structure and stable in operation, can be cooperatively used with a catalyst, and is used for plasma catalytic conversion and related reaction processes.

The application relates to the technical field of pulse power, in particular to a magnetic core auxiliary coaxial pre-ionization three-electrode gas switch, which comprises a gas switch main body, the gas switch main body comprises a low-voltage electrode, a high-voltage electrode and a trigger electrode which are coaxially arranged in an insulating support; the trigger electrode and the low-voltage electrode form a pre-ionization gap, and the trigger electrode and the high-voltage electrode form a main gap; the trigger electrode is used for receiving a trigger pulse voltage; when the trigger pulse makes the bottom of the trigger electrode produce strong field distortion, the pre-ionization gap is rapidly broken down, the main gap is pre-ionized by ultraviolet, and the gas switch main gap is rapidly broken down after the trigger pulse reaches the low-voltage electrode. The switch can improve the stability of the main gap breakdown.

The utility model relates to the technical field of material processing, and discloses a nickel net laser precision etching forming device which comprises a bottom plate, the top of the bottom plate is fixedly connected with a closed shell, the rear side of the top of the bottom plate is fixedly connected with a centrifugal fan, and the front end of the centrifugal fan is communicated with a dust collection shell. A fixing groove is formed in the front side of the inner wall of the dust collection shell, a filter screen is slidably connected to the inner wall of the fixing groove, a fixing block is fixedly connected to the left side of the top of the dust collection shell, an electric telescopic rod is fixedly connected to the right side of the fixing block, and a cleaning brush is fixedly connected to the right end of the electric telescopic rod. According to the dust collection device, the centrifugal fan is started through the controller to suck dust, sucked air is cleaned through the filter screen and the air purification filter, so that exhausted gas does not cause environmental pollution, the electrostatic adsorption plate is combined with the high-voltage electrode, dust collection is convenient and clean, environment and personnel safety is guaranteed, and extra equipment is reduced.

This invention discloses a bubble discharge test device in transformer insulating oil, belonging to the technical field of transformer testing equipment. It includes a test chamber containing insulating oil. Inside the test chamber are simulated heating and discharge components, with the simulated discharge component located above the simulated heating component. Outside the test chamber are an insulating oil filter, a bubble injection component, and an acoustic imaging monitoring component. The simulated discharge component includes a parallel, vertically arranged grounding electrode plate and a high-voltage electrode plate, as well as a distance adjustment mechanism connected to the high-voltage electrode plate. The acoustic imaging monitoring component is located above the simulated discharge component. This invention can accurately and comprehensively simulate the discharge characteristics of bubbles in transformer insulating oil.

The invention relates to a transformer oil circulation plasma enhancement method and system, a dielectric barrier discharge plasma device is arranged in an oil duct of a transformer oil tank, the ionic wind effect generated by the dielectric barrier discharge plasma device is used for driving oil to accelerate flow circulation, and therefore traditional mechanical oil pump driving is replaced. The high-voltage electrode of the dielectric barrier discharge plasma device is completely wrapped in the dielectric barrier layer so as to ensure discharge safety, the control unit adaptively adjusts the discharge intensity through the sensor, and rapid cut-off protection is carried out when abnormity occurs. The dielectric barrier discharge plasma device synchronously decomposes fault gas in oil in the process of driving the oil to accelerate circulation, and integration of dual functions of transformer oil cooling and insulation purification is achieved. The device does not need moving parts, is low in power consumption, long in service life, intelligent and suitable for a high-voltage-class oil-immersed transformer.

The invention relates to the technical field of dust removal, in particular to a high-hardness and washable electrostatic dust removal electrode and a preparation method and application thereof. The electrostatic dust collection electrode comprises an electrode body and a coating arranged on the surface of the electrode body, the preparation raw materials of the coating comprise a photocureable coating and an inorganic filler; the inorganic filler comprises at least one of silicon dioxide and zirconium dioxide. The surface of the electrostatic dust collection electrode is provided with the coating jointly formed by the photocureable coating and the inorganic filler, the problem of surface arcing of the electrostatic dust collection high-voltage electrode is solved, the coating has excellent surface hardness and wear resistance, the hardness and wear resistance of the coating are improved, and after the electrostatic dust collection electrode is washed for multiple times, the electrostatic dust collection electrode is not prone to falling off. And the good purification efficiency is still kept.

The invention relates to the technical field of household appliances, and discloses a plasma generation module, an oil stain decomposition device, a range hood and a control method of the range hood. The electrode structure comprises a dielectric tube, a high-voltage electrode and a low-voltage electrode, and the high-voltage electrode and the low-voltage electrode are wound outside the dielectric tube at a set interval; the electrode structure is inserted into a mounting hole of the support, a glue filling groove is formed in the support, the glue filling groove is filled with insulating glue, and the insulating glue is plastically packaged outside the electrode structure; a hollow channel is formed in the dielectric tube, and the high-voltage electrode and the low-voltage electrode conduct dielectric barrier discharge in the dielectric tube and generate plasma. Dielectric barrier discharge is performed in the dielectric tube, and the exterior of the electrode structure is subjected to insulation plastic package, so that the problems of corrosion, electrode breakdown and creepage caused by exposure of the high-voltage electrode and the low-voltage electrode in a high-humidity and high-pollution lampblack environment can be effectively avoided, the service life of the plasma generation module is prolonged, and the safety of the plasma generation module is improved.

The utility model relates to the technical field of electric power systems and equipment, and discloses a surge protector, which comprises a shell main body, a high-voltage electrode is connected inside the shell main body, a zinc oxide valve plate is connected to an output end below the high-voltage electrode, and a grounding lead is connected to the lower end of the zinc oxide valve plate. The utility model has the advantages that by adopting the zinc oxide valve plate, the nonlinear characteristic is improved, the through-flow capacity is increased, high-power surge can be better processed, normal leakage current is reduced, residual voltage is reduced, the response time to instantaneous overvoltage is short, the response speed is improved, no follow current exists, and the working efficiency is effectively improved.

The invention discloses a high-temperature in-situ diffuse reflection infrared device applied to low-temperature plasma, and relates to the technical field of in-situ diffuse reflection infrared measurement. The ceramic cover plate is detachably arranged at the opening of the stainless steel tank body, and a sealed high-temperature accommodating cavity is formed when the ceramic cover plate covers the opening of the stainless steel tank body; the ceramic fixing flange penetrates through a bottom plate of the stainless steel tank body and is in sealed connection with the stainless steel tank body, the top of the ceramic fixing flange is located at the position, close to the center, of the high-temperature containing cavity, and a material containing space with the diameter larger than that of a through hole in the ceramic fixing flange is formed in the top of the ceramic fixing flange; the high-voltage electrode is arranged in the ceramic fixing flange in a penetrating mode, the top of the high-voltage electrode extends into the material containing space, and the top end of the high-voltage electrode is lower than the top of the ceramic fixing flange. The beneficial effects are that the central high-voltage electrode and the annular electrode are cooperatively designed, the central high-voltage electrode is used as a discharge electrode, and the glow-like discharge phenomenon is generated between the central high-voltage electrode and the annular electrode, so that a uniform discharge area is formed.

The application discloses a multi-electrode continuous discharge spark discharge generating device, and relates to the field of aero-engine ignition. The spark discharge generating device comprises an ignition circuit and a multi-electrode spark plug. The multi-electrode spark plug comprises a metal shell and a plurality of central high-voltage electrodes arranged in the metal shell. The application matches the design parameters of the multi-electrode spark plug with the non-uniformity coefficient of the electric field in the ignition end face, and designs the ignition circuit, so that the maximum value of the delay difference between the breakdown time of two adjacent discharges is less than the arc duration time, the continuous discharge of the multiple electrodes is realized, the arc flame energy is higher, the contact area of the ignition arc and the mixed fuel is larger, the combustion in the combustion chamber is more uniform, the misfire rate of the spark plug is effectively reduced, and the operation reliability of the engine is improved.

The utility model discloses a plasma processing device which comprises a cavity and a coaxial electrode assembly, a reaction chamber is arranged in the cavity, and the cavity is connected with a gas input assembly and a vacuumizing unit. The coaxial electrode assembly comprises a tubular high-voltage electrode and a grounding electrode, the high-voltage electrode is connected with a high-frequency power supply, and the grounding electrode coaxially sleeves the high-voltage electrode to form a discharge gap; the high-voltage electrode is a hollow pipe body, micropores are formed in the side wall, and the gas input assembly conveys process gas to the discharge gap through the hollow pipe body and the micropores. According to the structure, the high-voltage electrode adopts the hollow pipe body structure design, the side wall of the hollow pipe body is provided with the micropores, and process gas is directly conveyed to the discharge gap through the hollow pipe body and the micropores, so that uniform gas distribution is ensured, and the plasma generation efficiency is improved; and meanwhile, powder uniform fluidization and efficient plasma treatment are achieved. And through the rotatable design of the cavity, the powder agglomeration is further broken, and the surface treatment uniformity of the plasma on the powder is improved.

The invention discloses a high-voltage insulation processing method of an image intensifier. The method comprises the following steps: step 1, sleeving a high-voltage-resistant heat-shrinkable sleeve on the outer side of a high-voltage electrode wire; stripping the heat-shrinkable sleeve and an insulating layer of the high-voltage electrode wire to expose a wire core; 2, arranging a wire core, and performing button manufacturing along one direction; 3, the core heads on the two sides are connected; 4, a temperature control soldering iron is used for welding the hooking connection points, and scaling powder is smeared; step 5, completing an on-resistance test; step 6, coating epoxy glue on a welding spot, sleeving a first layer of sleeve, and performing hot blowing; sleeving a second layer of sleeve, repeating to the middle position of the first layer of sleeve, and performing hot blowing; step 7, assembling the welding spot joint in an insulating groove made of a polyimide material; and 8, wrapping ports of the first layer of sleeve and the second layer of sleeve by using silicon rubber at the same time, and fixing the wire harness at the bottom of the insulating plate. The invention has the characteristics of good insulating property, high dielectric strength, firm mechanical connection, high space environment adaptability and outstanding damage resistance.

This invention discloses a device and method for preparing catalytic gas-liquid two-phase discharge plasma activation liquid, belonging to the field of plasma-activated water preparation technology. It includes a discharge reaction device installed in a container, with a catalyst placement module inside. The discharge reaction device includes a quartz tube, with a high-voltage electrode placed inside via a fixed connection device. A discharge channel is formed between the high-voltage electrode and the quartz tube. A through-hole jet is located at the center of the bottom of the quartz tube, and multiple rings of identical-sized pores are evenly distributed around its perimeter. By setting a catalyst placement module at the bottom of the discharge reaction device, the liquid level inside the quartz tube is changed under the action of gas through the pores and jet, allowing the catalyst placement module to be positioned at pores at different heights within the quartz tube. This catalyst participates in the discharge and enriches the series of reactions occurring during the discharge process, effectively improving reactant conversion rate, product selectivity, and energy efficiency.

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.