31results about How to "Low corona initiation voltage" patented technology

The present invention discloses a pure dry composite housing high-voltage sleeve and its production method. Its main insulating layer is a multilayer series-connected pure solie concentric ylinder insulating layer made up by at least using two kind of solid layers which are spaced and tightly combined, the insulating housing and connecting sleeve are tightly connected with external side of main insulating layer. The production method includes the following steps: using peoxy glass fibre wet winding-forming process to make semi-conductor band and glass fibre material coated with epoxy resin wind round the conducting bar according to sinesoid law to make main insulating layer, solidifying and surface processing, fixing connecting sleeve, mounting insulating housing, equalizing cover and wiring terminal, it contains no any oil or gas, can prevent leakage of oil and gas and explosion hidden peril, and its weight is light and small in volume, and cost is low.

The invention relates to a conveying capacity controllable nano particle jet flow minimal quantity lubrication grinding device in an enhanced magnetoelectricity field. Through adding of a magnetic field on the periphery of a corona zone, the charge capacity of liquid drops is increased. The device comprises a spray nozzle, a nano particle liquid feeding system, a gas supply system, a high-voltage DC electrostatic generator, an adjustable high voltage DC power supply and a magnetic field forming device. The high-voltage DC electrostatic generator and the magnetic field forming device are arranged outside the spray nozzle. The spray nozzle is connected with the nano particle liquid feeding system and the gas supply system. The high-voltage DC electrostatic generator is connected with the negative pole of the adjustable high voltage DC power supply. The positive pole of the adjustable high voltage DC power supply is connected with a workpiece power-up device which is used for being attached to a non-machined surface of a workpiece, and consequently a negative corona discharge form is formed. The magnetic field forming device is arranged on the periphery of the corona zone with electrostatic discharge. Nanofluid grinding fluid is sprayed out of a spray head of the spray nozzle and is atomized to be the liquid drops, and at the same time, the liquid drops are charged under the action of the high-voltage DC electrostatic generator and the magnetic field forming device and then are fed into a grinding region.

The invention discloses a wet-type electrostatic dust collector cathode and anode configuration structure. The wet-type electrostatic dust collector cathode and anode configuration structure comprises a cathode and an anode, wherein the cathode is installed on a cathode framework, the anode is installed on an anode framework, and the anode is in a regular-hexagonal tubular shape; the cathode is a cathode with discharging pins, the discharging pins are distributed on the cathode in a layering manner, each layer is provided with three discharging pins, adjacent layers are staggered to form an angle of 60 degrees, and the inter-layer distance is 25mm to 100mm; the discharging pins are vertically connected to the cathode, and each discharging pin points to the regular-hexagonal tubular corner of the anode. By adopting the wet-type electrostatic dust collector cathode and anode configuration structure, the anode can uniformly and effectively trap electrons and charged pollutants; voltage corona inception and corona stability of the cathode can be reduced, the discharging position of the cathode can be set according to the anode form, the length of each cathode discharging pin can be set according to the medium condition, the discharge intensity can be adjusted according to the angle, and simplicity and easiness can be realized; moreover, a needlepoint-shaped discharge point does not have the problem that the discharging is suppressed by the coating of dust and gypsum in the wet smoke; the cathode-anode configuration structure can be adaptive to a wet-type dust collector, and the application is wide.

The invention discloses a cathode wire for a wet electrostatic dust collector. The cathode wire comprises a cathode rod (1), and is characterized in that bur rings (2) are arranged on the cathode rod (1); the discharging points of the bur rings (2) are of sharp-pointed annular or polygonal structures; connecting pieces (4) are arranged at the two ends of the cathode rod (1) respectively, so that the cathode wire is fixed on a cathode frame through the connecting pieces (4). The bur ring type cathode wire is simple in structure and easy to manufacture and mount; the discharging points of the bur rings form the sharp-pointed annular or polygonal structures, so that the bur rings have a discharging function in each direction, and the number of discharging points can be set according to needs; the wet electrostatic dust collector with the cathode wire has the characteristics of low critical coronal voltage, high electric field intensity and uniform electric field distribution, the problem of corona dead zones of a conventional wet electrostatic dust collector is well solved, and the dust collection and defogging efficiency of the wet electrostatic dust collector is further improved.

The invention relates to the technical field of electric filtration and purification, in particular to a honeycomb electrofilter with a high flow rate. According to the honeycomb electrofilter, a power supply control cabinet is connected with a high pressure generator connected with china bottle pull rods; sleeve insulating boxes are arranged at the top of a cylinder; sleeve insulating pieces and the china bottle pull rods are fixedly connected to form a whole and are fixedly connected with an upper hanging bracket, the upper hanging bracket is connected with a barb corona electrode, both a collecting electrode and the barbed corona electrode are arranged between the upper hanging bracket and a lower hanging bracket, and gas distribution plates are arranged below the lower hanging bracket; and an anti-swing suspension, the barbed corona electrode, the collecting electrode and the gas distribution plates are arranged in the cylinder, a gas inlet is formed in the lower part of one side of the cylinder, a gas outlet is formed in the center of the top of a tar precipitating body, and a tar outlet is formed in the lower part of the cylinder. According to the honeycomb electrofilter, the electrofiltration and purification problems of gas when the air speed of a gas electric field is 3-4 m / s are solved, the steel consumption of an equipment body is reduced, and at the same time, the corona power of the electric field is increased, so that the electrofiltration efficiency is improved.

The invention discloses an efficient tubular plate vertical current wet-type electrostatic dust collector. The efficient tubular plate vertical current wet-type electrostatic dust collector comprises a shell (1), wherein an anode dust collecting mechanism (2) arranged vertically is arranged in the shell (1) and adopts a tubular plate structure formed by dust collecting boards; a vertically arranged cathode wire (31) with discharge points is arranged between the tubular plates of the anode dust collecting mechanism (2); the upper end of the cathode wire (31) is fixed on a cathode girder (32) above the cathode wire (31); the lower end of the cathode wire (31) is fixed on a tension frame (33) blow the cathode wire (31); the cathode girder (32) is connected with a high voltage power supply system (4) through conductive wires; a cathode system is formed by the cathode girder (32), the cathode wire (31) and the tension frame (33). As an electrostatic field formed by the tubular plate anode dust collecting mechanism and the cathode wires, effectively solves the problem of difficult removing of PM2.5 tiny particles, acid mist, liquid drops, aerosol, heavy metals and the like from the smoke, and the efficient tubular plate vertical current wet-type electrostatic dust collector is widely used.

The invention discloses a chip type cathode wire of an electrostatic dust collector. The chip type cathode wire comprises a cathode pole (1), wherein gear shaped barb pieces (2) are vertically arranged on the cathode pole (1) in a sheathed manner, the inner circle of each barb piece (2) is matched with the outer circle of the cathode pole (1), the top ends of gear teeth at the outer circumference of the barb pieces (2) are sharp-angled discharging ends and the sharp-angled discharging ends on the adjacent barb pieces (2) are staggered from one another or aligned to one another. According to the chip type cathode wire of the electrostatic dust collector, the gear shaped barb pieces are adopted, the ratio of the inner circle, the tooth root circle and the tooth top circle of each barb piece and the thickness of each barb piece are particularly defined, the top ends of the gear teeth on the outer circumference of the barb pieces are defined as the sharp-angled discharging ends and the sharp-angled discharging ends on the adjacent barb pieces are staggered from one another or aligned to one another, therefore, the cathode wire with the barb pieces has the characteristics of low corona onset voltage, high electric field intensity and uniform electric field distribution, has a simple structure, and is easy to manufacture and install and further suitable for promotion and application.

The invention relates to a composite purifier, and the purifier comprises a shell provided with an air inlet and an air outlet. A water mist area is provided with a water mist nozzle and a baffle gridplate; a charge area is provided with a corona electrode and a charge area grounding electrode plate, wherein the corona electrode is connected with a corona electrode fixing rod, and the charge areagrounding electrode plate is connected with the charge area grounding electrode fixing rod; a discharge electrode plate of a dust collection area is connected with a discharge electrode fixing rod; adust collection area grounding electrode plate is connected with a dust collection area grounding electrode fixing rod; a dust collection area power supply device of an electrostatic power supply device is provided with a discharge electrode support, a charge area power supply device is provided with a corona electrode support, the discharge electrode support is connected with a discharge electrode fixing rod, and the corona electrode support is connected with the corona electrode fixing rod. Through combination of the water mist area, the charge area and the dust collection area and a bottom-in top-out flue gas flowing mode, the beneficial effects of high purification efficiency, low resistance, low energy consumption, low maintenance and operation cost, long service life, reduction of fire hazards and the like are achieved.

The invention discloses a modularized industrial flue gas purifying device which comprises a flue gas cooling module B, a flue gas purifying module A, a supporting column C and an air flow sealing structure, wherein the flue gas cooling module B is arranged at the front end of the gas flow direction and is used for cooling gas flow; the flue gas purifying module A is arranged at the top of the flue gas cooling module B and is used for achieving purification and gas-water separation on flue gas flow; the bottom of the flue gas cooling module B is arranged at the top of a flue gas outlet D through the supporting column C; furthermore, a gap between the flue gas cooling module B and a flue gas channel is wrapped by an air flow sealing structure to prevent unpurified flue gas from being exhausted out directly. The modularized industrial flue gas purifying device disclosed by the invention can effectively achieve gas-water separation on water-containing flue gas in an industrial waste gas exhausting channel and collect particles in the gas flow; compared with a traditional physical absorption method, the gas flow channel is prevented from being plugged, and an effect on air pressure drop of channel gas flow is extremely low; the modularized industrial flue gas purifying device is suitable for being applied to severe operation environments of factory flue gas exhausting openings andthe like.

The invention provides a high-power high-voltage high-frequency transformer. The transformer comprises an insulating partition plate; a primary winding and a secondary winding which are respectively arranged on two sides of the insulating partition plate, wherein the primary winding and the secondary winding are spirally coiled according to a plane to form a wire cake, and an inner hole is formedin the center of the wire cake; and primary and secondary side magnetic cores which are arranged in inner holes of the primary and secondary side windings; the primary side magnetic core is fixed in the primary side shielding case, the secondary side magnetic core is fixed in the secondary side shielding case, and the primary side shielding case and the secondary side shielding case enable the whole high-power high-voltage high-frequency transformer to be flat. Therefore, the transformer is in an ultra-thin flat shape, thermal resistance can be reduced, voltage resistance and creepage distanceare guaranteed, insulating materials are saved, due to the flat shape, the distance between the shielding covers on the two sides is small, the plane is large, the uniformity of an internal electricfield is good, no partial discharge can be achieved, and the insulating plate is arranged between the primary winding and the secondary winding. The primary side and the secondary side of the transformer can be completely isolated, and high-voltage isolation is achieved.

The invention provides a multi-dimensional corona electrode structure and an electrostatic precipitator. The technical defects that a corona wire used as an ionization pole in the electrostatic precipitator is prone to fusing and double-faced tip-type ionization pole has poor ionizing effect is overcome in the prior art. The multi-dimensional corona electrode structure comprises at least one set of secondary corona electrodes, wherein secondary corona electrodes comprise grounding electrodes in a hollow and cylindrical shape, and multi-dimensional ionization poles arranged in the grounding electrodes. The multi-dimensional ionization poles comprise a plurality of ionization needle layers, and the ionization needle layers are distributed in the inner cavities of hollow barrels one by one inthe axial direction of the hollow barrels of the grounding electrode. The ionization needle layers comprises a plurality of ionization needles radially distributed around the radial axis, and first air ducts are formed between the multi-dimensional ionization poles and the inner wall of the grounding electrodes. By adopting a multi-dimensional needle electrode structure, the effective area of discharge is greatly increased, the concentration of existing needle-shaped discharge plasmas is increased, the effect of dust removing and sterilization and disinfection of a ionization purifier is improved, and meanwhile, the problem of wire breakage in filamentous discharge can be solved.

The invention discloses a carbon anode roasting fume purification ultra-low emission system and process. The carbon anode roasting fume purification ultra-low emission system comprises a spraying cooler, an electrical tar precipitator and a desulfuration defluorination device, wherein the fume output end of the spraying cooler is connected with the fume inlet of the electrical tar precipitator; the fume outlet of the electrical tar precipitator is connected with the fume inlet of the desulfuration defluorination device through an exhaust fan; an anode system in the electrical tar precipitator consists of combined multifunctional double-peak plate type anode rows; a cathode system consists of a ridge wire and a square wire; a hot water cleaning device is arranged on the electrical tar precipitator. By adopting the carbon anode roasting fume purification ultra-low emission system, various pollutant emission indexes can all meet national atmosphere pollutant emission requirements of 2016 to 2030. A high fume purification effect can be achieved. As temperature monitoring points are arranged at key points of the system, possible ignition points can be monitored and controlled, and production security can be ensured. Due to the adoption of the hot water cleaning device, the smoldering phenomenon in the electrical tar precipitator can be effectively prevented. Due to a hybrid polar matching mode, the purification efficiency can be improved.

The invention discloses a large-volume honeycomb corona plasma 3D uniformity adjusting device, and the device comprises a first panel structure, wherein an end face of the first panel structure is provided with a honeycomb-shaped multi-pin electrode composed of electrode pins. The electrode pins are perpendicular to the first panel structure, and the connection lines between the electrode pins andthe contact point of the first panel structure form a regular hexagon, wherein the center of the regular hexagon is provided with an adjustment pin with the adjustable length. The adjustment pin is perpendicular to the first panel structure, and the first panel structure, the honeycomb-shaped multi-pin electrode and the adjustment pin form a discharge combined electrode. The device provided by the invention can generate a large-volume corona plasma under a lower voltage, can adjust the size and shape of the corona plasma in a three-dimensional range, enables the corona plasma to better applyto the industrial production and scientific research.

The invention provides a novel wire-pipe type diesel vehicle tail gas particle trap based on corona discharge. The wire-pipe type diesel vehicle tail gas particle trap comprises a charged part and a dust collection part. Bobbin type high-voltage pulse corona charging is adopted by the charged part, and bobbin type high-voltage negative direct current corona charging is adopted by the dust collection part which collects soot particles. Each barrel is provided with an electrode wire inlet and a high-temperature-resistant insulating conical plug, and electrode wire supporting discs are arranged in the barrels. The charged part and the dust collection part are connected in an insulated mode. After an engine is started, tail gas enters the charged part, and after the soot particles are fully charged, the soot particles enter the dust collection area along with the tail gas; and then the particles are further charged and then collected to the inner wall of a dust collection pipe under the action of electric field force, so that purification is completed. The purification structure is simple, purification efficiency is high, and the cost is low.

The invention provides a horizontal electric dust collector with a frame corona electrode and a template collector, and belongs to the field of particle pollutant purifying equipment. According to the technical scheme, the frame type corona electrode and a template type dust collector are installed in a shell of the electric dust collector in a spaced mode; rectangular pyramids at the two ends of the shell are both provided with an intake air flow distribution plate and an exhaust air flow distribution plate, an ash bucket is fixed to the lower side of the shell, and the lower portion of the ash bucket is connected with a spiral conveyer; and a dust collecting electrode dust cleaning device is installed at the bottom of the shell, a corona electrode dust cleaning device is installed on the top of the shell, and a low-voltage power supply control cabinet, a high-voltage power supply control cabinet and a power transformer are fixed to one side of the shell. The dust collector has the beneficial effects that the polar distance of the frame type corona electrode is stable and accurate, the distance between polar plates of the template type dust collector is wide, and the corona electrode dust cleaning device is installed on the top of the shell; the structure is compact, running is safe, pressure loss is small, dust removal efficiency is high, the gas treatment amount is large, and automatic control can be achieved; and design is novel, the structure is reasonable, operation is easy and convenient, maintenance is easy, and safety and reliability are achieved.

The invention discloses a strip cathode wire for an electrostatic dust collector. The strip cathode wire comprises a cathode pole (1), wherein a strip discharge rack (2) is arranged on the cathode pole (1), and is arranged in the length direction of the cathode pole (1); and angular discharge tips (3) are arranged on the discharge rack (2) at intervals. The strip discharge rack is arranged on the cathode pole in the length direction of the cathode pole, and the number of the discharge rack and the structure and number of the discharge tips on the discharge rack are limited, so that the electrostatic dust collector using the cathode wire has the characteristics of low corona onset voltage and high discharge current; and meanwhile, as the set mode of the discharge rack enables dust captured by the cathode wire to be difficultly bonded and conveniently cleaned, the problems of easy bonding of the captured dust on the cathode wire in a corona dead area and difficult cleanness in an original electrostatic dust collector are preferably solved, and the dust and mist removing efficiency of the electrostatic dust collector is further improved.

The invention discloses a spiral cathode wire for an electrostatic precipitator. The spiral cathode wire comprises a cathode wire body (1), wherein the cathode wire body (1) is formed by folding a sheet body along the length direction into a body with a Z-shaped section in the width direction and then twisting the body with the Z-shaped section into a spiral body, and a sharp-corner-shaped discharge sharp end (2) is arranged on the spiral part of the cathode wire body (1). The cathode wire body is formed by folding the sheet body along the length direction into the body with the Z-shaped section in the width direction and then twisting the body with the Z-shaped section into the spiral body and the sharp-corner-shaped discharge sharp end (2) is arranged on the spiral part of the cathode wire body (1), so that the cathode wire has the characteristics of low corona voltage and high discharge current, is capable of changing gas into a turbulent flow by means of a baffling channel on the cathode wire body to increase thrust of the gas towards a dust collecting electrode, and facilitates the acting of electric field force; dust collected by the cathode wire is difficult to adhere and convenient to clean; the cathode wire has the characteristics of being simple in structure, easy to manufacture and install, and suitable for popularization and use.

The invention relates to a unit module based on a honeycomb electrostatic field and an electrocoagulation and dust removal device and method based on a honeycomb electrostatic field. Metal wires are arranged on the outer sides of metal cylinders of the honeycomb electrostatic field, and anode needles are concentrically arranged in the metal cylinders of the honeycomb electrostatic field; the metalwires and the outer walls of the metal cylinders form an ionization region; the anode needles and the inner walls of the metal cylinders form a dust collection region; and a flow-equalizing reversingair duct is arranged under the honeycomb electrostatic field. During work, particles in air transversely penetrate through the ionization region along with the airflow, and large particles are adsorbed by the outer walls of the metal cylinders; particles which are not adsorbed move towards the inlet of the flow-equalizing reversing air duct along with the airflow blocked by a flow baffle plate and are returned into the dust collection region through the flow-equalizing reversing air duct, and the particles are adsorbed by the inner walls of the metal cylinders; positive and negative high-voltage power supplies are used in the ionization region; when the particles transversely pass through the ionization region along with the airflow, particles which are not adsorbed are charged with opposite-polarity charges, when the particles pass through the flow-equalizing reversing air duct, the opposite-polarity fine particles are coagulated into large particles, and finally the fine particles are adsorbed by the inner walls of the metal cylinders, so that the purification efficiency of the fine particles can be effectively improved.

The invention discloses a device for improving the intensity of ionic wind through cooperation of a magnetic field and a carbon nano tube. The device comprises an ionic wind generation unit and a metal heat dissipation device; an LED chip to be cooled is fixed on the lower end face of the metal heat dissipation device; the ion wind generation unit is arranged on the upper portion of the metal heat dissipation device through a fixing support, ion wind is generated by the ion wind generation unit, convection heat exchange is conducted on the metal heat dissipation device through the ion wind, and then enhanced heat dissipation of the LED chip is achieved. The permanent magnet is installed in the device to provide a magnetic field environment to increase the speed of ion wind; when the device is applied to heat management of a high-power LED chip, corona current under the same discharge voltage is remarkably reduced, and energy consumption is reduced; and meanwhile, the carbon nano tube coating a needle tip inhibits the generation of ozone in corona discharge. The device is simple in overall structure, low in power consumption, reliable in work and green and environment-friendly.

The invention discloses an epoxy resin dry-type wall-through bushing, which comprises an insulator which is mainly made of an outdoor epoxy resin added with auxiliary materials such as a curing agent and a toughening agent. The inner center of the insulator is provided with a The carrier fluid is provided with a metal flange in the middle of the outside, and a metal cover is provided at each end; the side of the metal flange is in the shape of a "ten", and the insulators at both ends are in the shape of multi-layer sheds, and the metal The upright part of the flange is wrapped in the insulator, and the outer surface is exposed outside the insulator; the upright part of the metal flange exposed outside the insulator is provided with a measuring terminal, and the measuring terminal is connected with a capacitive screen arranged in the insulator. This epoxy resin dry wall bushing has no oil, no gas and pure solid, high temperature resistance, stable electrical performance, no danger of combustion and explosion, compact structure, small size, easy transportation, high bending strength, excellent mechanical properties, Long service life and low long-term operating costs.

The invention discloses a fishbone needle type cathode line for a wet type electric precipitator. The fishbone needle type cathode line comprises a cathode rod. The cathode rod is sleeved with a plurality of stainless steel rings. Each stainless steel ring is fixedly connected with N fishbone needles. The included angle between every two adjacent fishbone needles is 360 degrees / N, wherein N is a positive integer. The N fishbone needles on the adjacent stainless steel rings are arranged in a staggered manner. The discharge sharp end of each fishbone needle is in a ball shape. The novel fishbone needle type cathode line for the wet type electric precipitator is simple in structure, convenient to install, high in dust removing efficiency and capable of being adjusted in good time according to actual situations. The cathode line has the beneficial effects that the discharge inception voltage is low, the voltage current characteristic is good, and the adaptability to the smoke change is high, and the dust and mist removing efficiency is guaranteed.

The invention relates to a discrete carbon nanotube array discharge ionization source, including a power supply; one end of the power supply is connected to a carbon nanotube array discharge electrode, and the other end is connected to a counter electrode, and the carbon nanotube array discharge electrode and the counter electrode A channel for the sample to pass is formed between them. The carbon nanotube array discharge electrode includes a base layer on which a discrete needlepoint array is arranged, and then single or multiple carbon nanotubes are vertically grown on the discrete needlepoint array. Tube. The present invention uses carbon nanotubes as electrodes for corona discharge, which avoids the prior art. The discharge electrodes of corona discharge are made of metal, which is not only difficult to produce and easily corroded, but also reduces the stability of the ionization source, thereby providing a curvature Discrete carbon nanotube array discharge ionization source with small radius, good stability and not easy to be corroded.

The invention provides a novel wire-pipe type diesel vehicle tail gas particle trap based on corona discharge. The wire-pipe type diesel vehicle tail gas particle trap comprises a charged part and a dust collection part. Bobbin type high-voltage pulse corona charging is adopted by the charged part, and bobbin type high-voltage negative direct current corona charging is adopted by the dust collection part which collects soot particles. Each barrel is provided with an electrode wire inlet and a high-temperature-resistant insulating conical plug, and electrode wire supporting discs are arranged in the barrels. The charged part and the dust collection part are connected in an insulated mode. After an engine is started, tail gas enters the charged part, and after the soot particles are fully charged, the soot particles enter the dust collection area along with the tail gas; and then the particles are further charged and then collected to the inner wall of a dust collection pipe under the action of electric field force, so that purification is completed. The purification structure is simple, purification efficiency is high, and the cost is low.

The invention provides an ionic wind heat exchanger for waste heat recovery of a natural gas engine. The ionic wind heat exchanger comprises a box body, an ionic wind generator module, and at least one heat exchange water pipe, wherein the ionic wind generator module is arranged in the box body, and comprises a plurality of line electrodes and a plurality of parallelly arranged horizontal plate electrode groups; each horizontal plate electrode group comprises a plurality of horizontal plate electrodes which are horizontally arranged at a certain interval from top to bottom; one line electrodeis arranged between the every two adjacent horizontal plate electrodes in the horizontal plate electrode groups; the line electrodes are emitting electrodes; the horizontal plate electrodes are receiving electrodes; and the heat exchange water pipes stretch into the box body from the top surface of the box body, are positioned between the every two adjacent horizontal plate electrode groups, bendand snake between the bottom surface and the top surface of the box body to penetrate through intervals between the every two adjacent horizontal plate electrode groups, and stretch out of the box body. According to the ionic wind heat exchanger, the structure is simple, the waste heat recovery rate is high, the structure is compact, power consumption is low, and harmful components in exhaust of the engine can be treated.

The invention discloses a wire board type dust removing part and a dust remover. The wire board type dust removing part comprises a power supply, a dust collection electrode and a corona electrode, wherein the dust collection electrode is connected with the negative electrode of the power supply and is provided with m dust collection plates arranged in parallel, wherein m is a natural number more than 2; the corona electrode is connected with the positive electrode of the power supply and is provided with n corona wires arranged in parallel; the plane of each corona wire is correspondingly positioned between the planes of the two dust collection plates in the m dust collection plates; and n is a natural number more than 1 and is less than or equal to (m-2). By adopting the wire board type dust removing part, the problem that the coronal voltage of a wire board type dust removing part in the prior art is high is solved so that the effects of reducing the coronal voltage and reducing the energy loss of an electric field are realized.

The invention discloses a large-volume honeycomb corona plasma 3D uniformity adjustment device, which comprises a first flat plate structure, and a honeycomb-shaped multi-needle electrode composed of electrode needles is arranged on the end surface of the first flat plate structure, and the electrode needles are perpendicular to the described The first flat plate structure, the connecting line between the electrode needles and the contact points of the first flat plate structure forms a regular hexagon, and the center of the regular hexagon is provided with an adjustable needle, which is perpendicular to the first flat plate structure, the said regular hexagon The first flat plate structure, the honeycomb multi-needle electrode and the regulating needle form the combined discharge electrode, and the invention provides a large-volume honeycomb corona plasma 3D uniformity regulating device. The device can generate a large volume of corona plasma at a lower voltage, and can adjust the size and shape of the corona plasma in a three-dimensional range, so that the corona plasma can be better used in industrial production and scientific research middle.

The invention provides a charged nozzle, a pre-charging device comprising the same and a method for charging dust-containing flue gas by using the pre-charging device. The charged nozzle comprises a nozzle outer shell, and a power supply lead-in wire and a discharge electrode which are connected in sequence are arranged in the nozzle outer shell in the discharge direction; the discharge electrodeis of a multi-tip structure or a blade-shaped structure with the edge of the discharge tip gradually thinned; and an end discharge port for releasing an electric field wire is formed in one end, closeto the discharge electrode, of the nozzle shell. According to the pre-charging device provided by the invention, the flue gas circulation pipeline is separated through the metal partition plate arranged in the flue gas circulation pipeline; the number of the charging nozzles on the unit length pipeline of the unit pre-charging device is greatly increased, so that the length of the flue gas circulation pipeline is shortened, the charging effect is improved, and meanwhile, the discharge current and the dust charging capacity of a single charging nozzle are greatly improved by using the multi-tip or blade-shaped discharge electrode.

The invention relates to the technical field of electric filtration and purification, in particular to a honeycomb electrofilter with a high flow rate. According to the honeycomb electrofilter, a power supply control cabinet is connected with a high pressure generator connected with china bottle pull rods; sleeve insulating boxes are arranged at the top of a cylinder; sleeve insulating pieces and the china bottle pull rods are fixedly connected to form a whole and are fixedly connected with an upper hanging bracket, the upper hanging bracket is connected with a barb corona electrode, both a collecting electrode and the barbed corona electrode are arranged between the upper hanging bracket and a lower hanging bracket, and gas distribution plates are arranged below the lower hanging bracket; and an anti-swing suspension, the barbed corona electrode, the collecting electrode and the gas distribution plates are arranged in the cylinder, a gas inlet is formed in the lower part of one side of the cylinder, a gas outlet is formed in the center of the top of a tar precipitating body, and a tar outlet is formed in the lower part of the cylinder. According to the honeycomb electrofilter, the electrofiltration and purification problems of gas when the air speed of a gas electric field is 3-4 m / s are solved, the steel consumption of an equipment body is reduced, and at the same time, the corona power of the electric field is increased, so that the electrofiltration efficiency is improved.