416 results about "Plasma generator" patented technology

According to the plasma aquaculture water purification method and system, a cold plasma directional screening technology is used as a core to construct a cold plasma water treatment module, a nanosecond pulse plasma generator is used for exciting a gas medium to form cold plasma, active particles are screened in situ through a directional screening assembly, and the cold plasma water treatment module is used for purifying aquaculture water. The method comprises the following steps: introducing ammonia nitrogen into a water body, guiding < 1 > O2 to be quickly injected into the water body, instantaneously completing a primary purification reaction in a gas-liquid intersection chamber, further, in order to fully utilize residual active particles, directionally converting a reaction precursor O3 of < 1 > O2 into < 1 > O2 through a catalytic dissociation module, and completing a secondary purification reaction between the < 1 > O2 and the ammonia nitrogen. Ammonia nitrogen is directionally converted into nitrogen by utilizing a 1O2-dominated non-free radical reaction path, the content of ammonia nitrogen and total inorganic nitrogen in a water body is reduced, and after purification is completed, oxidizing components in the water body and tail gas are respectively removed by adopting a by-product removal assembly, so that the use safety is guaranteed.

The invention relates to the technical field of intelligent fire extinguishing control of energy storage power stations, in particular to a method and system for plasma protection of thermal runaway of an air-cooled energy storage power station. The method comprises the following steps: processing real-time data acquired by a multi-source sensor through a dynamic risk assessment model to obtain a risk level and an early warning level; an initial control instruction for the plasma generator and the air cooling and refrigerating system is formed according to the risk level and the early warning level; the initial control instruction is processed to form a driving control signal; a control signal is subjected to cooperative execution processing to obtain a high-energy active particle jet flow, a forced airflow and a refrigeration effect. The system comprises an air cooling box body, a battery, a fan, a plasma generator, an ejector, an intelligent controller, a compressor, a gas-liquid separator, a heat exchanger, an electronic expansion valve, a drying filter, a gas sensor and a pressure sensor valve. The safety and reliability of the energy storage power station are improved.

The invention discloses a plasma hydrodynamic cavitation aeration coupled piezoelectric catalysis organic wastewater treatment system and method. The system comprises a wastewater tank, a water pump, a Venturi tube hydrodynamic cavitator, a catalytic oxidation reactor, a piezoelectric particle separator, a piezoelectric catalytic particle bin, a low-temperature plasma generator and an air pump. By coupling piezoelectric catalysis, pressure pulsation mechanical energy generated by hydrodynamic cavitation is converted into chemical energy for driving the piezoelectric effect, on one hand, pollutants are directly oxidized, and on the other hand, plasma by-product H2O2 is efficiently converted into. OH with strong oxidizing property, so that cooperation with plasma advanced oxidation is formed, and the pollutant removal efficiency is improved. The pollutant degradation energy efficiency and the energy utilization rate of the system are greatly improved. Meanwhile, the system realizes efficient recovery and cyclic utilization of the magnetic piezoelectric catalytic particles through the magnetic separation type piezoelectric particle separator, so that secondary pollution of the catalyst is fundamentally avoided.

The embodiment of the invention discloses a plasma operation electrode precise control method and system based on multi-dimensional signal mapping. The method comprises the steps that multi-dimensional signals in the working process of a plasma operation electrode are obtained; performing phase-space reconstruction on the multi-dimensional signal to obtain a state vector sequence representing the working state of the electrode; constructing a joint recursion plot based on the state vector sequence; joint recursion quantitative analysis is carried out on the joint recursion plot, joint recursion quantitative indexes used for representing multi-dimensional signal collaborative dynamic characteristics are extracted, and the joint recursion quantitative indexes at least comprise joint certainty, joint laminar flow, joint recursion rate and joint entropy; according to the corresponding relation between the joint recursion quantitative index and the plasma energy output stability, control parameters of a plasma generator are generated according to a preset mapping rule, and energy output of the plasma operation electrode is adjusted in real time according to the control parameters. The control precision is remarkably improved, thermal damage is reduced, and the operation safety is improved.

According to the plasma high-efficiency water purification system and method suitable for factory-like circulating aquaculture, a water purification unit with a plasma secondary reaction technology as a core is constructed, and a low-energy-consumption cold plasma generator is used for pre-activating gas and introducing the gas into a water body in a micro-nano bubble form; further, an underwater SDBD cold plasma generator is utilized to secondarily excite the activated bubbles to obtain underwater micro-plasmas, and short-life ROS (reactive oxygen species) mainly comprising. OH is efficiently generated through a gas-liquid interface micro-discharge effect, so that pathogenic microorganisms and harmful components such as ammonia nitrogen and nitrite in aquaculture sea and fresh water are quickly and efficiently purified; an electrochemical reaction technology and an internal circulation technology are utilized to construct a plasma by-product elimination unit, the electrochemical reaction technology enables the biotoxicity of a water body to be rapidly reduced to a safe level, and the internal circulation technology avoids the problem of plasma reaction tail gas pollution.

The application discloses a low-NOx ammonia fuel combustion system based on plasma combustion support X The generated staged ammonia gas combustion system comprises a high-frequency high-voltage power supply, a dielectric barrier plasma generator, a gas distribution system (a blower and an ammonia storage tank), a combustion chamber and a swirler; the dielectric barrier plasma generator comprises a high-voltage electrode, an insulating medium, a swirler and a ground electrode; and the gas distribution system comprises a blower and an ammonia storage tank. The application utilizes dielectric barrier to generate ammonia gas plasma discharge, reduces the difficulty of ammonia gas combustion and improves the stability of ammonia gas combustion; utilizes the swirler to generate rotating airflow and improves the combustion efficiency; utilizes ammonia gas staged combustion to further reduce NOx emission; and the ideal staged ratio is that the volume ratio of ammonia gas plasma to side wall ammonia gas is 20% (10%-30%), so that the ammonia gas plasma can be fully discharged, and the ammonia sprayed from the side wall can also be fully combusted.

The invention discloses a plasma generator and a traditional Chinese medicine disinsection device thereof, and belongs to the technical field of plasma. The plasma generator comprises a base, a first electrode, a second electrode and a heat preservation pipe. The core of the device is that high-concentration mixed gas is ionized into plasma'kindling 'through discharge of the central electrode and the tubular electrode, and the'kindling' ignites extremely rarefied mixed gas, so that stable and low-consumption combustion is realized. The disinsection device integrates the generator, an air path system and a transmission and air injection device, and the high-temperature air flow generated by the generator is used for carrying out double-sided uniform injection on the medicinal materials subjected to transmission and turn-over treatment, so that worm eggs are effectively killed at instantaneous high temperature, and no medicine residues exist. The device has the advantages of high efficiency, safety and energy conservation.

The invention discloses a method for preparing an ultrahigh-conductivity graphene / copper composite material through nitrogen plasma ball milling, and relates to the technical field of metal-based composite material preparation. The preparation method of the composite material comprises the steps that copper powder and graphene are mixed and placed in plasma ball milling equipment, a plasma generator and a high-energy ball milling device are started for mixing treatment in the nitrogen atmosphere, and composite powder is obtained; and the composite powder is densified through a spark plasma sintering technology, and the block composite material is obtained. Through the synergistic effect of plasma stripping, nitrogen doping and mechanical compounding, high-quality stripping, controllable doping and uniform dispersion of graphene are achieved in one step, interface bonding of graphene and copper is remarkably improved, and the interface electron transmission capacity is effectively enhanced. The graphene / copper composite material prepared by the preparation method disclosed by the invention shows extremely high conductivity while keeping high density.

The present invention performs an appropriate plasma treatment on an edge part of a substrate while suppressing the effects of the plasma on a central section of the substrate.　Provided is a substrate treatment device comprising: a chamber that accommodates one or a plurality of substrates in an upright state; a liquid supply line that supplies a liquid into the chamber; a vacuum pump that is connected to an upper part of the chamber, and that forms a vacuum in a space in the chamber above a liquid surface in a state in which the liquid is present in the chamber so that a section of the substrate is exposed from the liquid surface; a plasma generator that is arranged in the upper part of the chamber, and that performs a plasma treatment on the section of the substrate exposed from the liquid surface; and a control module that controls each part of the substrate treatment device.

The utility model discloses a kind of plasma field effect fresh-keeping refrigerator, including refrigerator body, plasma generator is installed on refrigerator body upper portion, plasma generator is electrically connected with multiple plasma emission rods movably arranged in the inside of refrigerator body, multiple plasma emission rods are movably connected with multiple shelves arranged in the inside of refrigerator body by multiple elastic fixtures, and the utility model is connected with plasma generator and movably arranged plasma emission rod and elastic fixture structure by setting, realize the flexible adjustment and stable installation of plasma generator, solve the problem of traditional design fixed installation, radiation range is limited, with good sterilization effect, the advantage that use is flexible and convenient.

A non-contact plasma monitoring method and a non-contact plasma monitoring device using same are disclosed. The non-contact plasma monitoring method may comprise: a first step of arranging one or more RF sensors on the outside of an inductively coupled plasma generator including an antenna, and measuring, as a function of time, induced electromotive force induced to each of the RF sensors by means of the antenna; a second step of performing the Fourier transform on the function of induced electromotive force at individual times, and then deriving the amplitude value of each of n-th harmonics; and a third step of deriving the state of plasma within the plasma generator from the amplitude values of each of the n-th harmonics.

This invention discloses a plasma generator, including a rear electrode assembly and an output electrode assembly. The output electrode assembly includes an output electrode connected to the rear electrode assembly. The inner cavity of the output electrode includes a first compression section, a throat straight section, and a first expansion section connected sequentially at their ends along the medium flow direction. Along the medium flow direction: the cross-sectional area of ​​the first compression section gradually decreases, the cross-sectional area of ​​the throat straight section remains constant, and the cross-sectional area of ​​the first expansion section gradually increases. In the plasma generator provided in this application, by first compressing and then expanding the medium within the inner cavity of the output electrode, under the same power conditions, the electrode ablation rate is reduced by increasing the arc voltage and decreasing the operating current. Therefore, the service life of the plasma generator provided in this application is extended.

The invention relates to the technical field of plasma, in particular to a plasma cleaning device capable of being spliced. The plasma generator comprises a main cavity, side plates, an electrode assembly and a high-voltage electric connector, the side plates are connected to the two sides of the main cavity in a sealed mode, the main cavity is formed by splicing a plurality of cavity modules, each cavity module is provided with a discharge area, an exhaust area, a plasma air outlet, an exhaust inlet and a splicing installation position, the discharge areas of the multiple cavity modules are communicated, and the exhaust areas of the multiple cavity modules are communicated with the splicing installation position. The exhaust areas of the plurality of cavity modules are communicated, the discharge areas are isolated from the exhaust areas, the plasma gas outlets are communicated with the discharge areas, the exhaust inlets are communicated with the exhaust areas, an electrode assembly is installed in the discharge area of each cavity module, and the high-voltage electric connectors are connected with the electrode assemblies. And the side plates and the cavity modules are positioned, butted and fixed through the splicing mounting positions. The cleaning heads with different lengths are composed of a modular product and can be spliced and customized according to customer requirements, and the overall transformation cost and the manufacturing cost can be reduced.

A plasma power supply (10) and a control method therefor, and a fusion reaction system. The plasma power supply (10) comprises: a breakdown power supply module (101) and an extraction power supply module (102). The breakdown power supply module (101) is used for: outputting a first voltage to a plasma generator (20) which generates plasma under the application of the first voltage; and when the output voltage is decreased from the first voltage to a second voltage, maintaining the output of the second voltage to the plasma generator (20). The extraction power supply module (102) is used for forming an electric field between the plasma generator (20) and a housing (30) of a nuclear fusion reaction chamber, and when the plasma generator (20) generates the plasma, forming a plasma current between the housing (30) and the plasma generator (20) on the basis of the plasma and the electric field. The plasma power supply (10) allows for direct formation of the plasma current in the nuclear fusion reaction chamber, thereby simplifying the formation process of the plasma current.

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.

A plasma processing apparatus includes an ESC system having an ESC electrode, a plasma generator generating first and second plasma, a controller controlling the ESC system and the plasma generator such that a first or second processing with the first or second processing is performed on a substrate chucked to a stage, and an abnormality detector detecting abnormality, based on a plurality of parameters. The abnormality detector performs an abnormality detection during predetermined period DT immediately after switching between the first processing and the second processing, based on a first parameter including a monitoring information related to voltage V and / or current I applied to the ESC electrode and does not include a monitoring information related to pressure PR within a chamber, and performs an abnormality detection during a predetermined period outside predetermined period DT, based on a second parameter including the monitoring information related to pressure PR within the chamber.

An air purifier includes a hollow reactor extending in one direction, a discharge plasma generator including a first electrode disposed on an outer wall of the reactor and a second electrode which is disposed inside the reactor and generates discharge plasma in a predetermined discharge region, a plurality of dielectric particles disposed in a packed-bed of the reactor, and a liquid supply unit which supplies fine droplets into the inside of the reactor.

The invention relates to a device for depositing a layer on a substrate (1) in a process chamber (4) arranged in a housing of a CVD reactor (3), with a gas inlet element (5) for introducing gases into the process chamber (4), with a gas outlet surface (8) having a plurality of gas outlet openings (6, 7) through which the gases can flow into the process chamber (4), with at least one plasma electrode (10) that can be supplied with an electrical voltage by a plasma generator (9) and is configured to supply energy to a gaseous starting material in order to generate a plasma, wherein the plasma electrode (10) is arranged to be displaceable in the process chamber (4).

The invention discloses a positioning mechanism for plasma coating, which relates to the field of plasma coating equipment and comprises a coating box, an upper cavity cover is fixed on the inner top wall of the coating box through screws, a lower cavity cover matched with the upper cavity cover is arranged below the upper cavity cover, and a coating nozzle is mounted in the center of the top of the upper cavity cover. The coating nozzle penetrates through the cover body and the box body through a connecting pipe and is connected with an external plasma generator; protective shells are fixed to the inner walls of the two sides of the lower cavity cover correspondingly, positioning mechanisms are arranged in the protective shells, the two positioning mechanisms are each composed of a clamping assembly and an alternate contraction assembly, the clamping assemblies clamp, position and rotate a base material, the alternate contraction assemblies switch clamping and positioning points of the base material after the clamping assemblies rotate, and the clamping assemblies are fixed to the lower cavity cover; according to the invention, the dynamic rotation of the base material in the coating process is realized, a new contact positioning point is automatically switched, the problem of the contact blind area of a fixed clamp is thoroughly eliminated, and plasma particles are uniformly deposited.

A plasma generating system having an igniter or other plasma generator for use in low pressure environments, such as occurs in aviation. Combustion is initiated with an electrode configuration having a large usable area of electrodes for high current plasma discharge over a longer length of the electrodes, resulting in a long useful life of the plasma generator. The plasma generation system includes circuitry that generates and propagate plasma along the electrodes by a Lorentz force and a thermal force using high currents that move the plasma along the electrodes without causing a destructive material state change in the electrodes.

The application discloses a method for realizing ionosphere aircraft stealth based on regulating and controlling electron distribution of tail area, first, evolution time scales under different non-extended parameters are calculated; and according to the superhot electron energy and particle flux per unit time required by different non-extended parameters, a radio frequency discharge plasma generator is controlled to generate plasma corresponding to the non-extended parameters; then, in the grid electric field, electrons enter the acceleration field area, and ions are directly discharged to the tail area of the aircraft without acceleration; the regulation and control duration under different non-extended parameters is determined by the evolution time scale corresponding to the non-extended parameter. The application changes the electron distribution of the ionosphere aircraft tail area by randomly injecting high-energy electrons into the tail area of the aircraft, regulates and controls the evolution law and characteristic scale of the non-linear local cavity in the tail area which cannot be eliminated, makes the anti-stealth method of monitoring the motion of the density cavity to detect the ionosphere stealth aircraft invalid, and thus realizes the stealth of the ionosphere stealth aircraft.

The invention provides a method for measuring and calculating the unit yield power consumption of electrochemical synthesis ammonia, the method is used for measuring and calculating the unit yield power consumption of an electrochemical synthesis ammonia device, and the electrochemical synthesis ammonia device at least comprises a plasma generator, a circulating electrolyte pump, an air pump and an electro-catalysis power supply; the method comprises the following steps: S100, obtaining effective power consumption of the electrochemical ammonia synthesis device within operation time tr; s200, the mass of ammonia generated by the electrochemical ammonia synthesis device within the operation time tr is obtained; s300, based on the effective power consumption and the mass of ammonia, the electrochemical synthesis ammonia unit yield power consumption is calculated, and the effective power consumption of the electrochemical synthesis ammonia device comprises the power consumption of a plasma generator, the power consumption of a circulating electrolyte pump, the power consumption of an air pump and the power consumption of an electro-catalysis power source.

The application relates to the technical field of sewage treatment, and provides a plasma water circulation treatment system, which is characterized by comprising a water tank, a plasma generator, a fan and a pump; the water tank and the plasma generator are connected through pipelines to form a circulation loop; the fan is connected with the plasma generator; the pump is arranged in the pipeline and used for pumping water in the water tank into the plasma generator; a plurality of water level sensors are arranged in the water tank along the height direction of the water tank in sequence, and the water level sensors are used for detecting the water level of water in the water tank. The plasma water circulation treatment system adopts a plasma discharge mode to treat sewage, can effectively kill harmful microorganisms in the sewage, does not cause secondary pollution, improves the sewage treatment efficiency, and reduces the sewage treatment cost.

A method of operating a piezoelectric plasma generator (14) comprising applying an input signal (S in ) to a piezoelectric transformer (1) of the piezoelectric plasma generator (14), wherein an absolute value (|A peak |) of a peak amplitude of the input signal (S in ) is periodically reduced and increased to a level less than and greater than a strike voltage (V ig ) of the plasma generator (14) such that a plasma periodically collapses.

The application discloses an energy-saving polychlorinated dibenzo-p-dioxin multistage control integrated device and method. A spraying system (1), an inlet horn flue (2), an intelligent dynamic adjusting device (3), a plasma generator (4), a bag filter (5) and a return bin pump (6) are combined into an integrated device; the spraying system (1) is installed at the front end of the inlet horn flue (2), the inlet horn flue (2) is installed with the plasma generator (4), and the bag filter (5) is arranged at the rear part of the plasma generator (4); and the intelligent dynamic adjusting device (3) is installed in a centralized control room. The multistage control method of adsorption removal, plasma decomposition and high-efficiency filtration is adopted, and comprehensive control of two forms of polychlorinated dibenzo-p-dioxin in flue gas is realized. The device has the characteristics of small land occupation, 100% polychlorinated dibenzo-p-dioxin purification and removal, low investment and low operation cost, and is suitable for new construction or reconstruction projects of industrial flue gas polychlorinated dibenzo-p-dioxin efficient purification, such as waste steel smelting and waste incineration.

A system for sterilization of a medical device comprising at least one medical device and at least one sterilization device. The sterilization device comprises at least one plasma generator and at least one water source and / or water vapor source for providing water and / or water vapor. The sterilization device is configured to generate plasma-activated water vapor and the system is configured to at least partially conduct the plasma-activated water vapor through the medical device.

The utility model discloses a kind of production devices for rapidly improving material surface adhesion, including box, the plasma processing spray head is electrically connected with plasma generator, the first screw rod slider upper end is fixedly connected with clamping block, the pretreatment bin lower end is equipped with wastewater bin, and wastewater bin one side lower end is connected with water outlet, the water outlet middle is connected with on-off valve, the electric rotating shaft, plasma generator, spray washing head, positive and negative tooth screw rod mechanism, second screw rod mechanism, servo motor and three-axis moving mechanism are electrically connected with PLC controller.The production device for rapidly improving material surface adhesion can be sprayed and washed by pretreatment bin and spray washing head, and the treatment effect is better, and can be quickly sealed switching by partition, and can be quickly automatically regulated by movable support plate, and can be extended outside box by second screw rod mechanism and second screw rod slider, conveniently loading and unloading operation, convenient to use.

A plasma generator by means of a resonant waveguide is disclosed. The plasma generator comprises: an annular or elliptical central waveguide that includes a plurality of slots on the inner side surface thereof; a first incident waveguide that is tangentially connected to the central waveguide to enable electromagnetic wave communication; an electromagnetic wave supply unit that transmits electromagnetic waves to the incident waveguide; and a plasma chamber that has an electromagnetic wave incident window which is positioned on an outlet side of the slots to seal the inside of the central waveguide, and through which electromagnetic waves introduced through the slots may be radiated to the outside.

The application relates to the technical field of medical devices, and discloses a plasma jet device which comprises an outer tube, a first insulating inner tube and a plasma generator, the outer tube extends along a first direction; one end of the first insulating inner tube extends along the first direction and is arranged in the outer tube, and the other end of the first insulating inner tube is exposed outside the outer tube; the first insulating inner tube is provided with a first medium channel extending along the first direction, the first medium channel is provided with an inlet and an outlet at two ends respectively, the outlet is located in the outer tube, and the inlet is located outside the outer tube; the plasma generator is located in the outer tube, and the plasma generator is arranged closer to the outlet relative to the inlet; the plasma generator comprises a first electrode and a second electrode, the first electrode and the second electrode are connected to the first insulating inner tube and are arranged at intervals along the first direction; the polarities of the first electrode and the second electrode are opposite, so that the plasma jet device can be used for treating deep tissues of a human body.

A synthesis method of 2,5-dihydroxymethyl tetrahydrofuran, comprising: 5-hydroxymethyl furfural is contacted with hydrogen after a plasma generator in the presence of a non-noble metal catalyst to generate 2,5-dihydroxymethyl tetrahydrofuran. The present application uses 5-hydroxymethyl furfural (5-HMF) as raw material, and synthesizes DHMTHF by hydrogen plasma coupling non-noble metal catalyst. The method of the present application does not need to use noble metal, utilizes the high reactivity of excited state particles in hydrogen plasma, reduces the reaction pressure and reaction temperature, and the plasma has the effect of dispersing the catalyst active metal again. The whole reaction process has the characteristics of relatively mild reaction conditions, low hydrogen consumption, high selectivity of target product, simple process, good stability of catalyst, low cost of catalyst, etc.