WO2024051629A1 - Atomization and corona-based oil fume waste gas purification apparatus and purification method - Google Patents

Atomization and corona-based oil fume waste gas purification apparatus and purification method Download PDF

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Publication number
WO2024051629A1
WO2024051629A1 PCT/CN2023/116668 CN2023116668W WO2024051629A1 WO 2024051629 A1 WO2024051629 A1 WO 2024051629A1 CN 2023116668 W CN2023116668 W CN 2023116668W WO 2024051629 A1 WO2024051629 A1 WO 2024051629A1
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WO
WIPO (PCT)
Prior art keywords
oil fume
corona
exhaust gas
mesh
gas purification
Prior art date
Application number
PCT/CN2023/116668
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French (fr)
Chinese (zh)
Inventor
张星
迟玉斌
于海波
吴金鑫
彭源
张记锁
李海龙
尹博
戴杰
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苏州科技大学
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Publication of WO2024051629A1 publication Critical patent/WO2024051629A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • B03C3/0175—Amassing particles by electric fields, e.g. agglomeration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
    • B01D51/02—Amassing the particles, e.g. by flocculation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0275—Other waste gases from food processing plants or kitchens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Definitions

  • Embodiments of the present invention relate to the technical field of air pollution control, and in particular to an atomized corona oil fume exhaust gas purification device and a purification method.
  • the corona discharge components cannot rotate, and oil fume particles are easily deposited on the corona discharge components, resulting in poor treatment efficiency and even requiring regular cleaning of the corona discharge components. part.
  • the object of the present invention is to provide an atomized corona oil fume exhaust gas purification device and a purification method that can efficiently purify oil fume.
  • the technical solution of the present application organically combines the advantages of the electrocoagulation and coagulation component as an electrocoagulation and processing module, the atomizing nozzle and the dynamic cage-type corona discharge component that work together to produce an atomizing corona treatment effect and can be self-cleaning. And the dynamic adsorption plate can rotate to achieve self-cleaning effect. In this way, the oil fume exhaust gas purification device and purification method of the present application can not only maintain a very high treatment effect, but also achieve a self-cleaning function, avoiding the effect of frequent cleaning of internal parts.
  • an atomized corona oil fume exhaust gas purification device is provided.
  • the two ends of the housing of the atomization corona oil fume exhaust gas purification device are respectively provided with air inlets and air outlets, and are provided with an air inlet and an air outlet in the housing.
  • the electrocoagulation and merging component is configured to cause the oil fume particles in the oil fume exhaust gas to be charged, coagulated and agglomerated;
  • An atomizing corona rotating component includes a water passing shaft, atomizing nozzles located at intervals on the water passing shaft, and a plurality of discharge electrodes arranged in a twisted cage shape on the surface of the water passing shaft, so The plurality of discharge electrodes rotate to throw the oil fume particles that have undergone atomization corona treatment onto the inner wall of the housing; and
  • the dynamic adsorption plate includes a rotating adsorption plate, and the adsorption plate throws at least part of the remaining oil fume particles onto the inner wall of the housing.
  • a purification method using the above-mentioned atomized corona oil fume exhaust gas purification device including the following steps:
  • the oil fume exhaust gas to be purified enters the housing from the air inlet;
  • the oil fume particles in the oil fume exhaust gas are charged, coagulated and agglomerated through electrocoagulation components;
  • the oil fume exhaust gas treated by the electrocoagulation component is sucked in and forms a first vortex that rotates counterclockwise or clockwise, and the oil fume particles in the first vortex are processed between the atomizing nozzle and the discharge electrode. After the atomization power supply is processed, it is thrown onto the inner wall of the housing;
  • the adsorption plate in the dynamic adsorption plate rotates to form a second vortex in the opposite direction to the first vortex. At least a part of the remaining oil fume particles are adsorbed by the adsorption plate and then thrown onto the inner wall of the housing.
  • the first form of electrocoagulation component can be set up as follows:
  • the electrocoagulation and combining component includes an airflow mesh plate and a plurality of universal wire drawing conductors arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and adjacent airflow meshes are There are universal wire drawing conductors between them.
  • the air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart.
  • a universal wire drawing conductor is provided in the central area of the four air flow meshes between two adjacent rows of air flow meshes, and the plurality of universal wire drawing conductors are connected by conductive wires.
  • the airflow mesh is in a circular, oval or rectangular shape, and the universal wire drawing conductor is in a four-pointed star shape.
  • Two adjacent rows of universally drawn wire conductors are connected to the high-voltage pole and the ground electrode of the AC high-voltage power supply respectively; the shape of the universally drawn wire conductor made of tungsten wire, steel wire or burr is sawtooth, needlepoint, spike, or thorn-like thorn. Rope or wire mesh.
  • the second form of electrocoagulation component can be set as follows:
  • the electrocoagulation and combining component includes an airflow mesh plate and a plurality of universal filament conductors arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and each airflow mesh hole Universal drawn filament conductors are provided.
  • the air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart.
  • a universal filament conductor is provided in the central area of each airflow mesh, and multiple universal filament conductors are connected by conductive wires.
  • the airflow mesh is in a circular, elliptical or rectangular shape, and the universal drawn filament conductor is in a center emitting shape.
  • Two adjacent rows of universal filament conductors are respectively connected to the high-voltage pole and the ground pole of the AC high-voltage power supply.
  • Universal drawn filament conductors made of tungsten wire, steel wire or barbed wire are in the shape of sawtooth, needle point, spike, thorn barbed wire or wire mesh.
  • the third form of electrocoagulation component can be set as follows:
  • the electrocoagulation and combining component includes an airflow mesh plate and a plurality of universal filigree conductors arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and the airflow meshes are provided with The universal drawn wire conductor is provided with a vent hole.
  • the air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart.
  • a universal drawn filament conductor is provided in the center area of each airflow mesh, and a ventilation hole is provided in each universal drawn filament conductor.
  • the plurality of universal drawn filament conductors are connected by conductive wires.
  • the airflow mesh is in a circular, oval or rectangular shape
  • the universal drawn wire conductor is in an annular shape with a plurality of uniformly arranged discharge wires
  • the ventilation hole is circular.
  • the adjacent universal filament conductors are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
  • the shape of the discharge wire made of tungsten wire, steel wire or thorn barb is sawtooth, needle point, spike, thorn barbed wire or wire mesh.
  • the fourth form of electrocoagulation component can be set as follows:
  • the electrocoagulation and combining component includes an airflow mesh plate and a plurality of discharge conductor flowers in the form of Pall ring structures arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and the airflow mesh A discharge conductor flower is provided in the hole.
  • the air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart;
  • a discharge conductor flower is provided in the central area of each airflow mesh.
  • Each discharge conductor flower includes a plurality of tongues distributed staggered along the space wall forming the airflow mesh. Conductive wires are passed between the plurality of tongues. connect,
  • the airflow mesh is circular, oval or rectangular, the plurality of tongues in each airflow mesh are in the form of a ring formed by petals, and the ventilation hole is circular;
  • the adjacent discharge conductor flowers are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
  • the tongue is made of tungsten wire, steel wire or burr in the shape of sawtooth, needle point, spike, thorn-like barbed wire or wire mesh.
  • Electrocoagulation and merging components are used. Multiple airflow meshes are provided on the electrocoagulation and merging components to achieve uniform airflow distribution.
  • the AC high-voltage power supply supplies power to the universal drawn filament conductors and two adjacent rows of tensile wires.
  • the inward-drawn filament conductors are respectively connected to the high-voltage pole and the ground electrode of the AC high-voltage power supply, so that the gas near the universal-drawn filament conductor is ionized to generate a large amount of charges.
  • the small-sized oil fume particles in the oil fume exhaust gas condense and agglomerate under the action of the alternating electric field. Large-sized oil fume particles are formed and charged.
  • the treatment effect can be doubled. Improved processing efficiency.
  • the dynamic twisted cage type corona discharge component is used to provide centrifugal force and electric field force.
  • the negative high-voltage DC power supply supplies power to the discharge electrode, so that the discharge electrode is close to the
  • the gas (oil fume exhaust gas) is ionized to produce a large amount of negative charges.
  • the large-size oil fume particles in the oil fume exhaust gas are negatively charged under the action of negative DC corona; at the same time, due to the discharge electrode in the dynamic cage (horizontal) corona discharge component It is in a high-speed rotating state, so it can generate centrifugal force.
  • the large-size oil fume particles in the oil fume exhaust gas are thrown to the cylindrical wall surface of the corona discharge component under the action of centrifugal force, and then collected in the oil collection tank and discharged through the oil drain valve.
  • the atomizing nozzle assembly and the dynamic cage-type corona discharge component realize atomizing corona.
  • the atomizing corona plasma technology takes into account the technical advantages of both electrostatic deposition and plasma, and can achieve the treatment of various pollutants in oil fume exhaust gas. Perform collaborative control.
  • the discharge electrode generates negative corona discharge under the action of negative high-voltage DC power supply.
  • the atomized water supply system continuously supplies water to the discharge electrode, causing an electrohydrodynamic atomization film to be formed on the surface of the discharge electrode.
  • the atomized water droplets are highly charged by free electrons and ions, and fly towards the discharge electrode at high speed under the action of the electric field.
  • the shell wall purifies oil fumes and particulate matter.
  • atomized corona plasma technology also has a purification mechanism such as the dynamic coagulation of high-speed water droplets, the electrostatic coagulation of charged water droplets, and the electronic charging of tiny dust. Has higher removal efficiency.
  • the discharge electrode water supply can be continuously atomized, oil droplets are prevented from sticking to the discharge electrode and dust collection electrode, ensuring long-term stable and efficient operation of the device.
  • the atomized corona plasma can remove VOCs in oil fumes and eliminate odors.
  • atomized corona plasma can purify circulating water at any time and minimize sewage discharge.
  • the plasma contains free electrons, high-energy particles and active particles. Water mist can further interact with the plasma to generate highly active free radicals such as ⁇ OH and ⁇ O. Strong oxidizing molecules such as and O 3 , highly active free radicals such as ⁇ OH and ⁇ O, and strong oxidizing molecules such as O 3 can react with VOCs and gas phase molecules with malodorous odors in oil fume exhaust gas to generate CO 2 , H 2 O, etc. Poisonous and harmless small molecule substances.
  • the dynamic adsorption plate By rotating the adsorption plate, the dynamic adsorption plate can not only increase the area exposed to the oil fume exhaust gas and improve the treatment effect, but also realize the self-cleaning function by rotating away the oil fume deposits on the adsorption plate, especially with the rotation direction of the discharge electrode. Collaboration can significantly improve treatment effects.
  • Figure 1A is a cross-sectional schematic diagram of an atomized corona oil fume exhaust gas purification device provided by an embodiment of the present invention
  • Figure 1B is a schematic cross-sectional view of a modification of Figure 1A;
  • Figure 1C is a schematic cross-sectional view of another modification of Figure 1A;
  • Figure 2A is a schematic diagram of the electrocoagulation components in the atomized corona oil fume exhaust gas purification device according to the embodiment of the present invention.
  • Figure 2B is a schematic diagram of a modification of Figure 2A
  • Figure 2C is a schematic diagram of another modification of Figure 2A;
  • Figure 2D is a schematic diagram of another modification of Figure 2A;
  • Figure 3A is a schematic diagram of the atomizing corona rotating component in the atomizing corona oil fume exhaust gas purification device according to the present invention
  • Figure 3B is an overall schematic diagram of the cage-type corona discharge component of Figure 3A;
  • Figure 3C is a schematic diagram of the atomizing corona rotating component with an atomizing nozzle according to the present invention.
  • Figure 3D is a cross-sectional schematic diagram of the atomized corona rotating component of Figure 3C;
  • Figure 4A is a schematic diagram of the dynamic adsorption plate in the atomized corona oil fume exhaust gas purification device according to the present invention.
  • Figure 4B is a schematic diagram of another modification of the dynamic adsorption plate according to the present invention.
  • the atomizing corona oil fume exhaust gas purification device 100 is generally in a cylindrical shape.
  • the air inlet 10 and the air outlet 50 are respectively provided at both ends of the cylindrical housing 60 .
  • Both the air inlet 10 and the air outlet 50 are provided as annular steps with a diameter smaller than that of the housing 60 .
  • the dynamic meaning in the names of the components of the atomized corona oil fume exhaust gas purification device 100 means that the exhaust gas treatment components can rotate, which is dynamic compared to the static situation in the prior art. , which means it can turn or rotate.
  • the electrocoagulation component 20 , the atomizing corona rotating component 30 , the dynamic adsorption plate 40 and other components are all arranged in the housing 60 .
  • a long strip is provided at the bottom of the housing 60
  • the oil collecting tank 61, the atomizing corona rotating component 30, and the dynamic adsorption plate 40 throw the collected oil smoke particles onto the inner wall of the housing 60 during the rotation process. By arranging them uniformly in one housing, they can share an oil collecting tank 61, thus simplifying the structure.
  • an oil collecting box 62 can be provided below the oil collecting tank 61.
  • the oil collecting tank 61 and the oil collecting box 62 can be connected through the opening on the oil collecting tank 61, so that the oil collecting box 62 can be removed and the oil collecting box can be removed.
  • the oil fume particles in 62 are discharged.
  • supporting legs 63 may also be provided at the bottom or four corners of the housing 60 .
  • the oil fume exhaust gas to be purified first enters from the air inlet 10 , then passes through the electrocoagulation and merging component 20 , the atomizing corona rotating component 30 , the dynamic adsorption plate 40 in sequence, and finally flows out from the air outlet 50 .
  • the electrocoagulation and merging component 20 is configured to charge, coagulate and agglomerate the oil fume particles in the oil fume exhaust gas.
  • the atomizing corona rotating component 30 includes a water shaft 31, atomizing nozzles 34 spaced on the water shaft 31, and a plurality of discharge electrodes 33 arranged in a cage shape on the surface of the water shaft 31.
  • the plurality of discharge electrodes 33 rotate to throw the oil fume particles that have undergone atomization corona treatment onto the inner wall of the housing 60 .
  • the dynamic adsorption plate 40 includes a rotating shaft 41 and a rotatable adsorption plate 42 disposed thereon.
  • the adsorption plate 42 throws at least part of the remaining oil smoke particles onto the inner wall of the housing 60 .
  • electrocoagulation component 20 matches or conforms to the interior shape of housing 60 . That is, the periphery of the electrocoagulation and merging component 20 is sealingly connected to the casing 60 to prevent the oil fume exhaust gas from passing through the periphery of the electrocoagulation and merging component 20 , resulting in part of the oil fume exhaust gas not being electrocoagulated and treated.
  • the water passing axis 31 of the atomizing corona rotating component 30 and the rotating axis 41 of the dynamic adsorption plate 40 are provided as separate components, which allows the rotation direction to be adjusted as desired.
  • the water passage shaft 31 rotates clockwise to form a clockwise first vortex
  • the rotating shaft 41 can be set to rotate counterclockwise to form a counterclockwise second vortex.
  • By setting the first vortex and the second vortex in opposite directions, can generate greater air flow disturbance in the casing 60, allowing more oil fume exhaust gas to pass through the adsorption plate 42 of the dynamic adsorption plate 40, producing a more efficient electrostatic adsorption effect, and improving the purification efficiency.
  • the water passage axis 31 of the atomizing corona rotating component 30 can be arranged to be the same axis as the rotation axis of the dynamic adsorption plate 40 . In this way, a vortex airflow in the same direction will be formed in the casing 60.
  • By adjusting the rotation speed more oil fume exhaust gas can collide with the inner wall of the casing 60 and more oil fume particles can be thrown onto the inner wall of the casing 60. It is more conducive to collecting oil smoke particles and achieving a better self-cleaning effect.
  • the electrocoagulation and merging component 20' can also be arranged to form a certain gap with the inner wall of the housing 60, thereby allowing the electrocoagulation and merging component 20' to pass through itself
  • the rotating shaft is driven or integrated on the water shaft 31 to rotate simultaneously with the atomizing corona rotating component 30.
  • the electrocoagulation and merging component 20' is integrated on one end of the water shaft 31 and is driven to rotate by it, which can further simplify the structure. .
  • the electrocoagulation component 20' may be configured to be rotatable such that the electrocoagulation component
  • the component 20', the atomizing corona rotating component 30 and the dynamic adsorption plate 40 can all be arranged on the same water axis 31 for rotation, which simplifies the structure and is more conducive to generating stronger airflow vortices and larger flow rates.
  • the oil fume exhaust gas passes through the purification device, more oil fume particles will be thrown onto the inner wall of the housing 60 .
  • An even better advantage is that the entire device no longer needs to be cleaned and can be self-cleaning.
  • the electrocoagulation component 20 is configured as a universal wire drawing component for electrocoagulation and treatment.
  • the electrocoagulation component 20 includes an airflow mesh plate 21 and a plurality of universal filament conductors 22 arranged on the airflow mesh plate 21, wherein a plurality of airflow meshes are provided on the airflow mesh plate 21.
  • the air flow mesh 23 is arranged as multiple exhaust flow meshes 23 on the air flow mesh plate 21 , and the air flow meshes 23 between each exhaust flow mesh 23 are spaced apart.
  • a universal wire drawing conductor 22 is provided in the center area of four adjacent air flow mesh holes 23 between two adjacent rows of air flow mesh holes 23 , and the plurality of universal wire drawing conductors 22 are connected by conductive wires 24 .
  • the shape of the universal drawn wire conductor 22 made of tungsten wire, steel wire or burr is sawtooth, needle point, spike, thorn barbed wire or wire mesh.
  • the airflow mesh 23 is in a circular, oval or rectangular shape, the universal wire drawing conductor 22 is in a four-pointed star shape, and two adjacent rows of the universal wire drawing conductors 22 are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
  • the electrocoagulation component 20 will produce regular alternating electric field changes.
  • charged oil fume particles pass by, due to the alternating effect of the changing electric field, the positively and negatively charged particles will move, causing collision and agglomeration. Small particles will agglomerate into large particles.
  • the electrocoagulation component 20 includes an airflow mesh plate 21 and a plurality of universal filigree conductors 22 arranged on the airflow mesh plate 21 , wherein a plurality of airflow meshes are provided on the airflow mesh plate 21 .
  • Mesh 23, the air flow mesh 23 is provided with a universal wire drawing conductor 22.
  • the air flow mesh 23 is arranged as multiple exhaust flow meshes 23 on the air flow mesh plate 21 , and the air flow meshes 23 between each exhaust flow mesh 23 are spaced apart.
  • a universal wire drawing conductor 22 is provided in the central area of each airflow mesh 23 , and multiple universal wire drawing conductors 22 are connected by conductive wires 24 .
  • the shape of the universal drawn wire conductor 22 made of tungsten wire, steel wire or burr is sawtooth, needle point, spike, thorn barbed wire or wire mesh.
  • the airflow mesh 23 is in a circular, elliptical or rectangular shape, and the universal wire drawing conductor 22 is preferably arranged in a m-shape or a radiating shape from the center. Arranged in this form, the discharge area of the universal drawn filament conductor 22 can be in better contact with the oil fume exhaust gas flow, thereby achieving better treatment effects. Setting it into a roughly rice-shaped shape can achieve the function of uniform airflow and make the airflow distribution more even.
  • Two adjacent rows of universally drawn wire conductors 22 are respectively connected to the high-voltage pole and the ground electrode of the AC high-voltage power supply.
  • two adjacent rows of universally drawn wire conductors 22 can be arranged to be respectively connected to the high-voltage pole and the ground electrode of the power supply. superior.
  • the electrocoagulation component 20 will produce regular alternating electric field changes.
  • charged oil fume particles pass by, due to the alternating effect of the changing electric field, the positively and negatively charged particles will move, causing collision and agglomeration. Small particles will agglomerate into large particles.
  • the electrocoagulation and combining component 20 includes an airflow mesh plate 21 and a plurality of universal filament conductors 22 arranged on the airflow mesh plate 21, wherein a plurality of airflow meshes are provided on the airflow mesh plate 21.
  • the mesh 23 and the airflow mesh 23 are provided with universal drawn wire conductors 22, and the universal drawn wire conductors 22 are provided with ventilation holes 25.
  • the air flow mesh 23 is arranged as multiple exhaust flow meshes 23 on the air flow mesh plate 21 , and the air flow meshes 23 between each exhaust flow mesh 23 are spaced apart.
  • a universal drawn filament conductor 22 is provided in the central area of each airflow mesh 23 .
  • Each universal drawn filament conductor 22 is provided with a ventilation hole 25 .
  • Conductive wires 24 pass between the plurality of universal drawn filament conductors 22 . connect.
  • the airflow mesh 23 is circular, elliptical or rectangular, the universal filament conductor 22 is arranged in an annular shape with a plurality of uniformly arranged discharge wires 26, the ventilation holes 25 are circular; adjacent The universal drawn filament conductors 22 are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
  • the shape of the discharge wire 26 made of tungsten wire, steel wire or barbed wire is sawtooth, needle point, spike, thorn-shaped barbed wire or wire mesh.
  • the electrocoagulation component 20 Since the AC high-voltage power supply waveform is alternating between positive and negative, the electrocoagulation component 20 will produce regular alternating electric field changes. When the charged oil fume particles pass through the periphery of the universally drawn filament conductor 22 and its corresponding vent hole 25, due to the alternating effect of the changing electric field, the positive and negative charged particles will move, which can achieve the effect of double discharge processing, thereby achieving Better collision and agglomeration, small particles will agglomerate into large particles, improving the treatment effect.
  • the electrocoagulation and combining component 20 includes an airflow mesh plate 21 and a plurality of discharge conductor flowers 22 in the form of Pall ring structures arranged on the airflow mesh plate 21, wherein the airflow mesh plate 21 is provided with There are a plurality of airflow meshes 23, and discharge conductor flowers 22 are provided in the airflow meshes 23.
  • the air flow mesh 23 is arranged as multiple exhaust flow meshes on the air flow mesh plate 21 , and the air flow meshes between each exhaust flow mesh 23 are spaced apart.
  • a discharge conductor flower 22 is provided in the central area of each airflow mesh 23.
  • Each discharge conductor flower 22 includes a plurality of tongues 28 distributed staggered along the space wall forming the airflow mesh.
  • the plurality of tongues 28 are connected by conductive wires.
  • the central area of the airflow mesh 23 except for the plurality of tongues 28 forms a ventilation hole that allows oil fume exhaust gas to pass.
  • the airflow mesh 23 is in a circular, oval or rectangular shape, and a plurality of tongues 28 in each airflow mesh 23 present a
  • the vents are circular in the form of a donut formed by the petals.
  • the adjacent discharge conductor flowers 22 are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
  • the shape of the tongue 28 made of tungsten wire, steel wire or burr is sawtooth, needle point, spike, thorn-like barbed wire or wire mesh.
  • the discharge conductor flower 22 arranged in the form of a Pall ring structure can have the advantages of small resistance, large gas flux, large elasticity of the tongue piece 28, and large internal specific surface area, resulting in higher discharge effect.
  • the atomizing corona rotating component 30' may be provided in the form of an atomizing nozzle assembly in front of the cage-type corona discharge component.
  • the atomizing nozzle assembly includes a plurality of nozzles 34 and a support plate 35, so The plurality of nozzles 34 are evenly arranged on the support plate 35 and are connected to the external atomization water supply system through pipes, so that liquids such as water can be sprayed from the nozzles 34 .
  • the atomizing nozzle assembly is arranged between the electrocoagulation part 20 and the atomizing corona rotating part 30' and the nozzle 71 injects liquid toward the atomizing corona rotating part 30'.
  • the plurality of atomizing nozzles 34 are hollow conical nozzles, and the spray areas of the plurality of atomizing nozzles 34 are annular.
  • the heat in the oil fume exhaust gas can be quickly transferred to achieve a cooling effect; on the other hand, a good impact effect of airborne droplets can be achieved to form oil-in-water droplets. Due to the charge of the oil-in-water droplets, static electricity can be generated at the rear end.
  • the adsorption area (dynamic adsorption plate 40) captures.
  • the atomizing corona By combining the atomizing nozzle assembly and the atomizing corona rotating component 30', the atomizing corona can be used to generate plasma.
  • the plasma system contains free electrons and active groups, which can effectively remove VOCs and malodorous gas pollutants.
  • the particle size of the mist droplets sprayed by the atomizing nozzle is between 2-50 ⁇ m, so that the sprayed mist droplets are fine and uniform, achieving better effects.
  • the spray angle of the atomizing nozzle 34 is at an angle of 25-150° relative to the center line of the housing 60 . It can be understood that the injection angle, injection pressure and flow rate are adjusted according to the air volume of the treated oil fume exhaust gas. The injection angle is between 25-150°, and the goal is to achieve the best humidification and atomization effect.
  • the atomizing nozzle assembly plus the dynamic cage (horizontal) discharge corona component is used to achieve atomizing corona.
  • the atomizing corona plasma technology takes into account the technical advantages of both electrostatic deposition and plasma, and can Achieve coordinated control of multiple pollutants in oil fume exhaust gas.
  • the dynamic cage (horizontal) discharge corona component includes a discharge electrode 33.
  • the discharge electrode 33 generates negative corona discharge under the action of negative high-voltage DC power supply.
  • the atomized water supply system continuously supplies water to the discharge electrode 33 through the atomizing nozzle 34, so that an electrohydrodynamic atomization film is formed on the surface of the discharge electrode 33, and at the same time, the atomized water droplets are highly charged by free electrons and ions. Under the action of the electric field, it flies towards the casing 60 at high speed to purify oil smoke and particulate matter.
  • atomized corona plasma technology In addition to the wet electrostatic precipitating mechanism, atomized corona plasma technology also increases the dynamic coalescence of high-speed water droplets and the electrostatic charge of charged water droplets through atomized corona discharge. Purification mechanisms such as coagulation and electronic charging of fine dust, thus having higher removal efficiency for fine dust.
  • the discharge electrode 33 can continuously atomize the water supply, it avoids oil droplets sticking to the discharge electrode and the dust collection electrode, ensuring long-term stable and efficient operation of the device.
  • the atomized corona plasma can remove VOCs in oil fumes and eliminate odors.
  • atomized corona plasma can purify circulating water at any time and minimize sewage discharge.
  • the plasma contains free electrons, high-energy particles and active particles. Water mist can further interact with the plasma to generate highly active free radicals such as ⁇ OH and ⁇ O. Strong oxidizing molecules such as and O 3 , highly active free radicals such as ⁇ OH and ⁇ O, and strong oxidizing molecules such as O 3 can react with VOCs and gas phase molecules with malodorous odors in oil fume exhaust gas to generate CO 2 , H 2 O, etc. Poisonous and harmless small molecule substances.
  • the particle size of the oil smoke particles to be purified (herein referred to as the first oil smoke particles) is between 0.01-2 ⁇ m.
  • the first oil smoke particles in the oil smoke exhaust gas pass through the electrocoagulation and merging component 20, the first oil smoke particles are One oil smoke particle is charged, condensed and agglomerated to form a second oil smoke particle.
  • the particle size of the second oil smoke particle is larger than the particle size of the first oil smoke particle.
  • the cage corona discharge component 30' includes a central axis 31', a blade frame 32 and a plurality of discharge electrodes 33.
  • One end of each discharge electrode 33 is connected to the central axis 31', and the other end of the discharge electrode 33 is connected to the central axis 31'.
  • One end is connected to the blade frame 32, thereby forming a shape similar to a winch as a whole. It can be seen from the cross-section of the figure that five discharge electrodes 33 can be provided in each blade frame 32. Of course, more or less discharge electrodes 33 can also be provided.
  • the blade frame 32 is hollow, and the discharge electrodes 33 are arranged in a spiral shape at intervals in the hollow area of the blade frame. That is, the discharge electrode 33 has a spiral shape as a whole.
  • the discharge electrode 33 can be made of materials such as burrs, tungsten wire, molybdenum wire or stainless steel wire.
  • the discharge electrode 33 is corrugated and has a width ranging from 5 to 15 mm.
  • the discharge electrode 33 is laterally inclined at a predetermined angle with respect to the axis of the central axis 31', and the discharge electrode is arranged at an inclination with respect to the axis of the central axis 31', specifically 10-80 degrees (for example, 30-60 degrees), or 100-170 degrees. degree (eg 120-150 degrees).
  • the central shaft 31' is driven by a motor to rotate, thereby driving the discharge electrode 33 to rotate.
  • the preferred material of the discharge electrode 33 is burr, because using burr as the discharge electrode material has low corona voltage and discharge points are densely distributed throughout the burr material.
  • the barbed electrode can be made of at least one of bristle, nylon wire, steel wire and copper wire; the central shaft 31' can be made of at least one of iron wire and stainless steel wire, thereby achieving a lower cost.
  • the rotation speed of the discharge electrode 33 or the central axis 31' is between 60-300r/min.
  • the corrugated discharge electrodes and the laterally inclined arrangement make the gas to be treated rotate in the discharge cage (i.e., the discharge electrode 33
  • the space formed by rotation generates vortices in the central area.
  • eddy current can increase the charging probability of oil fume particles; on the other hand, it can make The oil fume particles with smaller particle sizes adhere to each other to form oil fume particles with larger particle sizes. Under the action of the above two aspects, the purification efficiency of oil fume particles can be significantly improved.
  • the atomizing corona rotating component 30' provides centrifugal force and electric field force.
  • the negative high-voltage DC power supply supplies power to the discharge electrode 33, so that the discharge electrode 33
  • the nearby gas is ionized to generate a large amount of negative charges, and the large-size oil fume particles in the oil fume exhaust gas are negatively charged under the action of negative DC corona; at the same time, because the discharge electrode 33 in the dynamic cage (horizontal) corona discharge component 30' is in The high-speed rotation state can generate centrifugal force, and the large-size oil fume particles in the oil fume exhaust gas are thrown to the cylindrical wall surface of the corona discharge component 30' under the action of centrifugal force, and then collected in the oil collection tank and discharged through the oil collection box.
  • FIG. 3C and 3D a structure integrating an atomizing nozzle and a cage-type dynamic corona discharge component is shown.
  • the structure is different from that shown in Figures 3A and 3B in that on the water shaft 31 provided with the discharge electrode 33, the plurality of atomizing nozzles 34 are arranged in a row along the longitudinal length of the water shaft 31, and Multiple rows of atomizing nozzles 34 are arranged on the entire circumferential surface of the water passage shaft 31 .
  • the plurality of atomizing nozzles 34 are hollow conical nozzles, and the spray areas of the plurality of atomizing nozzles 34 are annular.
  • the particle size of the mist droplets sprayed by the atomizing nozzle 34 is between 2-50 ⁇ m.
  • the spray angle of the atomizing nozzle 34 is at an angle of 25-150° relative to the center line of the water axis 31 .
  • the water shaft 31 is connected to the external water supply system, so that the atomizing nozzle can spray water and other liquids.
  • each nozzle 34 By arranging multiple atomizing nozzles 34 along the longitudinal length of the water axis 31, a better atomizing effect can be achieved compared to the structure of FIG. 3A, and each nozzle can better spray water onto the corresponding discharge electrode 33. . If an atomizing nozzle is provided only at one end of the water passing shaft 31, sufficient liquid droplets will not be obtained at the other end.
  • the dynamic adsorption plate 40 includes a rotating shaft 41 and a plurality of adsorbing electrode plates 42 installed on the rotating shaft 41 , and the plurality of adsorbing electrode plates 42 are spaced apart from each other.
  • the adsorption electrode plates 42 are arranged on the rotation shaft 41 at a circumferential angle interval of 5-20°.
  • the rotating shaft 41 can be driven to rotate by an external driving device (such as a motor), thereby driving the adsorption pole plate 42 to rotate at a speed of 500-1500 r/min.
  • the rotation of the discharge electrode 33 will result in the generation of eddy currents in a certain direction.
  • the rotation direction of the rotating shaft 41 is set to be opposite to it, so as to achieve greater air flow disturbance and adsorb the electrode plate. 42 can be exposed to more flow of oil fume exhaust gas.
  • the discharge electrode 33 and the adsorption plate 42 can also be arranged to rotate clockwise or counterclockwise in the same direction. It is not necessary for them to rotate in the opposite direction. Those skilled in the art can choose according to actual needs.
  • the adsorption plate 42 is provided with a plurality of herringbone or corrugated patterns.
  • each adsorption pole plate 41 can be an aluminum plate, a galvanized plate or a steel plate, among which the aluminum plate is preferred because the aluminum plate is lighter in weight, has better heat dissipation effect, and is less likely to catch fire.
  • the adsorption plate 42 may be provided with a convex and concave structure, such as a herringbone-shaped or corrugated pattern, to achieve a larger contact area for oil fume gas.
  • the arrangement direction of the adsorption electrode plates 42 is perpendicular to the paper surface of FIG. 1 or perpendicular to the flow direction of the air flow.
  • the function of the dynamic adsorption plate 40 is to realize dynamic electrostatic adsorption.
  • the positive high-voltage DC power supply supplies power to the adsorption plate 42 through the rotating shaft 41 or the corresponding conductive connection device.
  • the charged oil smoke particles are captured by the dynamic adsorption plate 40 under the action of the electrostatic field.
  • the oil smoke particles are thrown to the inner wall of the housing 60, and finally collected in the oil collection box through the oil collection tank 61. 62 in.
  • the central axis 31' drives the discharge electrode 33 to rotate clockwise or counterclockwise, for example, eddy currents will be generated in the cavity of the housing 60.
  • the rotating axis 41 drives the adsorption electrode plate. 42 reverse rotation can generate vortices in another direction, thereby increasing the disturbance of the exhaust gas flow and better performing electrostatic adsorption.
  • the dynamic adsorption plate 40 can also be configured to include a rotation shaft 41 and a plurality of adsorption pole plates 42 arranged on the rotation shaft 41 in an S-shaped bending structure.
  • the dynamic adsorption plate 40 includes a plurality of adsorption pole plates 42 arranged in an S-shaped bent structure at the other end of the water passing axis 31 . That is to say, the water passing shaft 31 and the driving shaft 41 can be integrated to facilitate better control.
  • the adsorption plate 42 adopts an S-shaped bending structure, which can increase the adsorption area, and high-speed rotation can generate larger vortices. Since the vortex is formed and the shape is set into an S shape, the residence time of oil fume particles can be effectively prolonged, which is beneficial to improving the adsorption efficiency. .

Abstract

The present invention relates to the technical field of air pollution control. Disclosed are an atomization and corona-based oil fume waste gas purification apparatus and purification method. An air inlet and an air outlet are respectively provided on two ends of a housing of the atomization and corona-based oil fume waste gas purification apparatus. The housing is internally provided with: an electrical agglomeration component configured to charge and agglomerate oil fume particles in oil fume waste gas; an atomization and corona rotating component comprising a water passage shaft, atomizing nozzles distributed on the water passage shaft at intervals, and a plurality of discharge electrodes arranged on the surface of the water passage shaft to form a helical shape, the plurality of discharge electrodes throwing the oil fume particles having undergone atomization and corona treatment to the inner wall of the housing by means of rotation; and a dynamic adsorption plate comprising rotary adsorption polar plates, the adsorption polar plates throwing at least some of the remaining oil fume particles to the inner wall of the housing.

Description

雾化电晕油烟废气净化装置及净化方法Atomized corona oil fume exhaust gas purification device and purification method 技术领域Technical field
本发明的实施例涉及大气污染控制技术领域，尤其涉及一种雾化电晕油烟废气净化装置及净化方法。Embodiments of the present invention relate to the technical field of air pollution control, and in particular to an atomized corona oil fume exhaust gas purification device and a purification method.
背景技术Background technique
工业或餐饮方面产生的油烟气体已经严重危害了环境和人体安全。虽然现有的净化装置中有使用电凝并部件的方式，但是电凝并部件设置成多根放电电极的形式，废气进入后分布不均匀，处理效果不够理想。Oil fume gas generated from industry or catering has seriously harmed the environment and human safety. Although the existing purification devices use electrocoagulation and merging components, the electrocoagulation and merging components are arranged in the form of multiple discharge electrodes. After the exhaust gas enters, the distribution is uneven and the treatment effect is not ideal.
另外，在使用电晕放电部件进行电晕放电处理废气的技术中，电晕放电部件不能转动，油烟颗粒物容易沉积到电晕放电部件上，造成了处理效率不好，甚至需要定期清洗电晕放电部件。In addition, in the technology of using corona discharge components for corona discharge treatment of waste gas, the corona discharge components cannot rotate, and oil fume particles are easily deposited on the corona discharge components, resulting in poor treatment efficiency and even requiring regular cleaning of the corona discharge components. part.
考虑到废气处理中的多个部件都需要清洗，希望尽可能地清洗更少的部件。Considering that multiple components in exhaust gas treatment need to be cleaned, it is desirable to clean as few components as possible.
发明内容Contents of the invention
本发明的目的在于提供一种能够高效净化油烟的雾化电晕油烟废气净化装置和净化方法。其中本申请的技术方案有机地结合了电凝并部件作为电凝并处理模块的优点、雾化喷嘴与动态绞笼式电晕放电部件共同作用产生雾化电晕处理效果并且可以自清洁的优点以及动态吸附板可以转动实现自清洁的效果。如此，本申请的油烟废气净化装置和净化方法不但可以始终保持非常高的处理效果，而且还可以实现自清洁的功能，避免了频繁清洗内部部件的效果。The object of the present invention is to provide an atomized corona oil fume exhaust gas purification device and a purification method that can efficiently purify oil fume. The technical solution of the present application organically combines the advantages of the electrocoagulation and coagulation component as an electrocoagulation and processing module, the atomizing nozzle and the dynamic cage-type corona discharge component that work together to produce an atomizing corona treatment effect and can be self-cleaning. And the dynamic adsorption plate can rotate to achieve self-cleaning effect. In this way, the oil fume exhaust gas purification device and purification method of the present application can not only maintain a very high treatment effect, but also achieve a self-cleaning function, avoiding the effect of frequent cleaning of internal parts.
根据本发明的一个方面，提供了一种雾化电晕油烟废气净化装置，所述雾化电晕油烟废气净化装置的壳体两端分别设置有进气口和出气口，在壳体内设置有：According to one aspect of the present invention, an atomized corona oil fume exhaust gas purification device is provided. The two ends of the housing of the atomization corona oil fume exhaust gas purification device are respectively provided with air inlets and air outlets, and are provided with an air inlet and an air outlet in the housing. :
电凝并部件，配置成使得油烟废气中的油烟颗粒物荷电凝并团聚；The electrocoagulation and merging component is configured to cause the oil fume particles in the oil fume exhaust gas to be charged, coagulated and agglomerated;
雾化电晕旋转部件，所述雾化电晕旋转部件包括通水轴、位于通水轴上间隔分布的雾化喷嘴和在通水轴表面上布置成绞笼形状的多个放电电极，所述多个放电电极通过旋转将经过雾化电晕处理后的油烟颗粒物甩到所述壳体的内壁上；和An atomizing corona rotating component, the atomizing corona rotating component includes a water passing shaft, atomizing nozzles located at intervals on the water passing shaft, and a plurality of discharge electrodes arranged in a twisted cage shape on the surface of the water passing shaft, so The plurality of discharge electrodes rotate to throw the oil fume particles that have undergone atomization corona treatment onto the inner wall of the housing; and
动态吸附板，所述动态吸附板包括旋转的吸附极板，所述吸附极板把剩余的油烟颗粒物的至少一部分甩到壳体的内壁上。Dynamic adsorption plate, the dynamic adsorption plate includes a rotating adsorption plate, and the adsorption plate throws at least part of the remaining oil fume particles onto the inner wall of the housing.
根据本发明的另一方面，提供了一种使用上述的雾化电晕油烟废气净化装置的净化方 法，包括以下步骤：According to another aspect of the present invention, a purification method using the above-mentioned atomized corona oil fume exhaust gas purification device is provided. method, including the following steps:
待净化的油烟废气从进气口进入壳体内；The oil fume exhaust gas to be purified enters the housing from the air inlet;
通过电凝并部件使得油烟废气中的油烟颗粒物荷电凝并团聚；The oil fume particles in the oil fume exhaust gas are charged, coagulated and agglomerated through electrocoagulation components;
通过雾化电晕旋转部件通过旋转将经过电凝并部件处理后的油烟废气吸入并形成逆时针或顺时针旋转的第一涡流，处理第一涡流中的油烟颗粒物在雾化喷嘴和放电电极的雾化电源处理后，被甩到所述壳体的内壁上；Through the rotation of the atomizing corona rotating component, the oil fume exhaust gas treated by the electrocoagulation component is sucked in and forms a first vortex that rotates counterclockwise or clockwise, and the oil fume particles in the first vortex are processed between the atomizing nozzle and the discharge electrode. After the atomization power supply is processed, it is thrown onto the inner wall of the housing;
动态吸附板中的吸附极板通过旋转形成与第一涡流方向相反的第二涡流，剩余的油烟颗粒物的至少一部分被所述吸附极板吸附后甩到壳体的内壁上。The adsorption plate in the dynamic adsorption plate rotates to form a second vortex in the opposite direction to the first vortex. At least a part of the remaining oil fume particles are adsorbed by the adsorption plate and then thrown onto the inner wall of the housing.
电凝并部件的第一种形式可以设置成如下形式：The first form of electrocoagulation component can be set up as follows:
所述电凝并部件包括气流网孔板和布置在气流网孔板上的多个万向拉丝导体，其中所述气流网孔板上设置有多个气流网孔，相邻的气流网孔之间设置有万向拉丝导体。The electrocoagulation and combining component includes an airflow mesh plate and a plurality of universal wire drawing conductors arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and adjacent airflow meshes are There are universal wire drawing conductors between them.
所述气流网孔在气流网孔板上布置成多排气流网孔，并且每排气流网孔之间的气流网孔间隔分布。The air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart.
相邻两排的气流网孔之间的四个气流网孔的中心区域上设置有一个万向拉丝导体，多个万向拉丝导体之间通过导电线连接。A universal wire drawing conductor is provided in the central area of the four air flow meshes between two adjacent rows of air flow meshes, and the plurality of universal wire drawing conductors are connected by conductive wires.
所述气流网孔成圆形、椭圆形或矩形，所述万向拉丝导体成四角星形。The airflow mesh is in a circular, oval or rectangular shape, and the universal wire drawing conductor is in a four-pointed star shape.
相邻的两排万向拉丝导体分别接在交流高压电源高压极和接地极；由钨丝、钢丝或芒刺制成的万向拉花丝导体的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。Two adjacent rows of universally drawn wire conductors are connected to the high-voltage pole and the ground electrode of the AC high-voltage power supply respectively; the shape of the universally drawn wire conductor made of tungsten wire, steel wire or burr is sawtooth, needlepoint, spike, or thorn-like thorn. Rope or wire mesh.
电凝并部件的第二种形式可以设置成如下形式：The second form of electrocoagulation component can be set as follows:
所述电凝并部件包括气流网孔板和布置在气流网孔板上的多个万向拉花丝导体，其中所述气流网孔板上设置有多个气流网孔，每个气流网孔内设置有万向拉花丝导体。The electrocoagulation and combining component includes an airflow mesh plate and a plurality of universal filament conductors arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and each airflow mesh hole Universal drawn filament conductors are provided.
所述气流网孔在气流网孔板上布置成多排气流网孔，并且每排气流网孔之间的气流网孔间隔分布。The air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart.
每个气流网孔的中心区域上设置有一个万向拉花丝导体，多个万向拉花丝导体之间通过导电线连接。A universal filament conductor is provided in the central area of each airflow mesh, and multiple universal filament conductors are connected by conductive wires.
所述气流网孔成圆形、椭圆形或矩形，所述万向拉花丝导体成中心发射形。The airflow mesh is in a circular, elliptical or rectangular shape, and the universal drawn filament conductor is in a center emitting shape.
相邻的两排万向拉花丝导体分别接在交流高压电源高压极和接地极上。Two adjacent rows of universal filament conductors are respectively connected to the high-voltage pole and the ground pole of the AC high-voltage power supply.
由钨丝、钢丝或芒刺制成的万向拉花丝导体的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。Universal drawn filament conductors made of tungsten wire, steel wire or barbed wire are in the shape of sawtooth, needle point, spike, thorn barbed wire or wire mesh.
电凝并部件的第三种形式可以设置成如下形式： The third form of electrocoagulation component can be set as follows:
所述电凝并部件包括气流网孔板和布置在气流网孔板上的多个万向拉花丝导体，其中所述气流网孔板上设置有多个气流网孔，气流网孔中设置有万向拉花丝导体，万向拉丝花导体中设置有通气孔。The electrocoagulation and combining component includes an airflow mesh plate and a plurality of universal filigree conductors arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and the airflow meshes are provided with The universal drawn wire conductor is provided with a vent hole.
所述气流网孔在气流网孔板上布置成多排气流网孔，并且每排气流网孔之间的气流网孔间隔分布。The air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart.
每个气流网孔的中心区域上设置有一个万向拉花丝导体，每个万向拉丝花导体中设置有一个通气孔，多个万向拉花丝导体之间通过导电线连接。A universal drawn filament conductor is provided in the center area of each airflow mesh, and a ventilation hole is provided in each universal drawn filament conductor. The plurality of universal drawn filament conductors are connected by conductive wires.
所述气流网孔成圆形、椭圆形或矩形，所述万向拉花丝导体成带有多个均匀排布放电丝的圆环形，通气孔是圆形的。The airflow mesh is in a circular, oval or rectangular shape, the universal drawn wire conductor is in an annular shape with a plurality of uniformly arranged discharge wires, and the ventilation hole is circular.
相邻的万向拉花丝导体分别接在交流高压电源高压极和接地极上。The adjacent universal filament conductors are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
由钨丝、钢丝或芒刺制成的放电丝的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。The shape of the discharge wire made of tungsten wire, steel wire or thorn barb is sawtooth, needle point, spike, thorn barbed wire or wire mesh.
电凝并部件的第四种形式可以设置成如下形式：The fourth form of electrocoagulation component can be set as follows:
所述电凝并部件包括气流网孔板和布置在气流网孔板上的多个鲍尔环结构形式的放电导体花，其中所述气流网孔板上设置有多个气流网孔，气流网孔中设置有放电导体花。The electrocoagulation and combining component includes an airflow mesh plate and a plurality of discharge conductor flowers in the form of Pall ring structures arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and the airflow mesh A discharge conductor flower is provided in the hole.
所述气流网孔在气流网孔板上布置成多排气流网孔，并且每排气流网孔之间的气流网孔间隔分布；The air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart;
每个气流网孔的中心区域上设置有一个放电导体花，每个放电导体花包括多个沿着形成气流网孔的空间壁上间隔交错分布的舌片，多个舌片之间通过导电线连接，A discharge conductor flower is provided in the central area of each airflow mesh. Each discharge conductor flower includes a plurality of tongues distributed staggered along the space wall forming the airflow mesh. Conductive wires are passed between the plurality of tongues. connect,
所述气流网孔内除所述多个舌片之外的中心区域形成允许油烟废气通过的通气孔。A central area in the airflow mesh, except for the plurality of tongues, forms a vent hole that allows oil fume exhaust gas to pass through.
所述气流网孔成圆形、椭圆形或矩形，每个气流网孔内的多个所述舌片呈现由花瓣形成的圆环形式，通气孔是圆形的；The airflow mesh is circular, oval or rectangular, the plurality of tongues in each airflow mesh are in the form of a ring formed by petals, and the ventilation hole is circular;
相邻的放电导体花分别接在交流高压电源高压极和接地极上。The adjacent discharge conductor flowers are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
由钨丝、钢丝或芒刺制成的舌片的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。The tongue is made of tungsten wire, steel wire or burr in the shape of sawtooth, needle point, spike, thorn-like barbed wire or wire mesh.
采用电凝并部件，电凝并部件上设置有多个气流网孔可以起到均匀气流分布的作用，并且在气流通过时，由于交流高压电源对万向拉花丝导体供电且相邻两排万向拉花丝导体分别接在交流高压电源的高压极上和接地极上使得万向拉花丝导体附近气体被电离产生大量电荷，油烟废气中的小粒径油烟颗粒物在交变电场作用下凝并团聚形成大粒径油烟颗粒物并荷电。Electrocoagulation and merging components are used. Multiple airflow meshes are provided on the electrocoagulation and merging components to achieve uniform airflow distribution. When the airflow passes through, the AC high-voltage power supply supplies power to the universal drawn filament conductors and two adjacent rows of tensile wires. The inward-drawn filament conductors are respectively connected to the high-voltage pole and the ground electrode of the AC high-voltage power supply, so that the gas near the universal-drawn filament conductor is ionized to generate a large amount of charges. The small-sized oil fume particles in the oil fume exhaust gas condense and agglomerate under the action of the alternating electric field. Large-sized oil fume particles are formed and charged.
在将万向拉丝花导体设置成内圈和外圈都可以通过废气气流可以起到双倍的处理效果， 提高了处理效率。When the universal wire drawing conductor is arranged so that both the inner and outer rings can pass through the exhaust gas flow, the treatment effect can be doubled. Improved processing efficiency.
另外，采用动态绞笼式电晕放电部件提供离心力和电场力，油烟颗粒物在经过动态绞笼式(卧式)电晕放电部件时，由于负高压直流电源对其中的放电电极供电使得放电电极附近的气体(油烟废气)被电离产生大量负电荷，油烟废气中的大粒径油烟颗粒物在负直流电晕作用下荷负电；与此同时，由于动态绞笼(卧式)电晕放电部件中放电电极处于高速旋转状态，因此可以产生离心力，油烟废气中的大粒径油烟颗粒物在离心力作用下被甩到电晕放电部件的圆筒壁表面，然后汇集在集油槽中经放油阀排出。In addition, the dynamic twisted cage type corona discharge component is used to provide centrifugal force and electric field force. When the oil fume particles pass through the dynamic twisted cage type (horizontal) corona discharge component, the negative high-voltage DC power supply supplies power to the discharge electrode, so that the discharge electrode is close to the The gas (oil fume exhaust gas) is ionized to produce a large amount of negative charges. The large-size oil fume particles in the oil fume exhaust gas are negatively charged under the action of negative DC corona; at the same time, due to the discharge electrode in the dynamic cage (horizontal) corona discharge component It is in a high-speed rotating state, so it can generate centrifugal force. The large-size oil fume particles in the oil fume exhaust gas are thrown to the cylindrical wall surface of the corona discharge component under the action of centrifugal force, and then collected in the oil collection tank and discharged through the oil drain valve.
这样，不但能够改善气流分布，而且还可以使得动态绞笼式电晕放电部件上不会沉积油烟颗粒物，提高了处理效果，并且不再需要定期进行清洗，达到了自清洁的效果。In this way, it can not only improve the air flow distribution, but also prevent the deposition of oil fume particles on the dynamic cage-type corona discharge components, improve the treatment effect, and eliminate the need for regular cleaning, achieving a self-cleaning effect.
雾化喷嘴组件加上动态绞笼式电晕放电部件其实现了雾化电晕，雾化电晕等离子体技术兼顾静电沉积与等离子体二者技术优势，可以实现对油烟废气中多种污染物进行协同控制。The atomizing nozzle assembly and the dynamic cage-type corona discharge component realize atomizing corona. The atomizing corona plasma technology takes into account the technical advantages of both electrostatic deposition and plasma, and can achieve the treatment of various pollutants in oil fume exhaust gas. Perform collaborative control.
放电电极在负高压直流电源作用下产生负电晕放电。在电晕放电过程中，雾化供水系统连续向放电电极供水，使得放电电极表面形成电流体动力学雾化薄膜，同时雾化水滴被自由电子和离子高度荷电，在电场作用下高速飞向壳体壁实现对油烟及颗粒物的净化。雾化电晕等离子体技术除了具有湿式静电除尘机理，雾化电晕放电增加高速水滴的动力凝并、荷电水滴的静电凝并以及对微小粉尘的电子荷电等净化机制，因而对微小粉尘具有更高的去除效率。The discharge electrode generates negative corona discharge under the action of negative high-voltage DC power supply. During the corona discharge process, the atomized water supply system continuously supplies water to the discharge electrode, causing an electrohydrodynamic atomization film to be formed on the surface of the discharge electrode. At the same time, the atomized water droplets are highly charged by free electrons and ions, and fly towards the discharge electrode at high speed under the action of the electric field. The shell wall purifies oil fumes and particulate matter. In addition to the wet electrostatic precipitating mechanism, atomized corona plasma technology also has a purification mechanism such as the dynamic coagulation of high-speed water droplets, the electrostatic coagulation of charged water droplets, and the electronic charging of tiny dust. Has higher removal efficiency.
由于可以持续进行放电电极供水雾化，避免油滴粘污放电电极和收尘电极，确保装置长期稳定而高效地运行，雾化电晕等离子体可去除油烟中VOCs并且消除臭味。此外雾化电晕等离子体可随时净化循环水，最大限度降低污水排放。Because the discharge electrode water supply can be continuously atomized, oil droplets are prevented from sticking to the discharge electrode and dust collection electrode, ensuring long-term stable and efficient operation of the device. The atomized corona plasma can remove VOCs in oil fumes and eliminate odors. In addition, atomized corona plasma can purify circulating water at any time and minimize sewage discharge.
在电晕放电过程中，空气击穿瞬间产生等离子体，等离子体中含有自由电子、高能粒子和活性粒子，其中水雾可以与等离子体进一步发生相互反应生成·OH、·O等高活性自由基和O3等强氧化性分子，·OH、·O等高活性自由基和O3等强氧化性分子可以与油烟废气中VOCs以及具有恶臭异味的气相分子反应生成CO2、H2O等无毒无害小分子物质。During the corona discharge process, air breakdown instantly generates plasma. The plasma contains free electrons, high-energy particles and active particles. Water mist can further interact with the plasma to generate highly active free radicals such as ·OH and ·O. Strong oxidizing molecules such as and O 3 , highly active free radicals such as ·OH and ·O, and strong oxidizing molecules such as O 3 can react with VOCs and gas phase molecules with malodorous odors in oil fume exhaust gas to generate CO 2 , H 2 O, etc. Poisonous and harmless small molecule substances.
动态吸附板通过转动吸附极板不但可以增加接触油烟废气的面积，改善处理效果，而且还可以通过旋转甩掉吸附极板上的油烟沉积物实现自清洁的功能，尤其是与放电电极的旋转方向协同配合，可以显著提高处理效果。By rotating the adsorption plate, the dynamic adsorption plate can not only increase the area exposed to the oil fume exhaust gas and improve the treatment effect, but also realize the self-cleaning function by rotating away the oil fume deposits on the adsorption plate, especially with the rotation direction of the discharge electrode. Collaboration can significantly improve treatment effects.
通过下文中参照附图对本发明的实施例所作的描述，本发明的其它目的和优点将显而易见，并可帮助对本发明有全面的理解。 Through the following description of the embodiments of the present invention with reference to the accompanying drawings, other objects and advantages of the present invention will be apparent and may help to have a comprehensive understanding of the present invention.
附图说明Description of the drawings
本发明将参照附图来进一步详细说明，其中：The invention will be described in further detail with reference to the accompanying drawings, in which:
图1A是本发明的一个实施例所提供的雾化电晕油烟废气净化装置的横截面示意图；Figure 1A is a cross-sectional schematic diagram of an atomized corona oil fume exhaust gas purification device provided by an embodiment of the present invention;
图1B是图1A的变形例的横截面示意图；Figure 1B is a schematic cross-sectional view of a modification of Figure 1A;
图1C是图1A的另一变形例的横截面示意图；Figure 1C is a schematic cross-sectional view of another modification of Figure 1A;
图2A是本发明的实施例的雾化电晕油烟废气净化装置中的电凝并部件的示意图；Figure 2A is a schematic diagram of the electrocoagulation components in the atomized corona oil fume exhaust gas purification device according to the embodiment of the present invention;
图2B是图2A的变形例的示意图；Figure 2B is a schematic diagram of a modification of Figure 2A;
图2C是图2A的另一变形例的示意图；Figure 2C is a schematic diagram of another modification of Figure 2A;
图2D是图2A的又一变形例的示意图；Figure 2D is a schematic diagram of another modification of Figure 2A;
图3A是本发明所述的雾化电晕油烟废气净化装置中的雾化电晕旋转部件的示意图；Figure 3A is a schematic diagram of the atomizing corona rotating component in the atomizing corona oil fume exhaust gas purification device according to the present invention;
图3B是图3A的绞笼式电晕放电部件的整体示意图；Figure 3B is an overall schematic diagram of the cage-type corona discharge component of Figure 3A;
图3C是本发明所述的带有雾化喷嘴的雾化电晕旋转部件的示意图；Figure 3C is a schematic diagram of the atomizing corona rotating component with an atomizing nozzle according to the present invention;
图3D是图3C的雾化电晕旋转部件的横截面示意图；Figure 3D is a cross-sectional schematic diagram of the atomized corona rotating component of Figure 3C;
图4A是本发明所述的雾化电晕油烟废气净化装置中的动态吸附板的示意图；Figure 4A is a schematic diagram of the dynamic adsorption plate in the atomized corona oil fume exhaust gas purification device according to the present invention;
图4B是本发明所述的动态吸附板的另一变形例的示意图。Figure 4B is a schematic diagram of another modification of the dynamic adsorption plate according to the present invention.
具体实施方式Detailed ways
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。在说明书中，相同或相似的附图标号指示相同或相似的部件。下述参照附图对本发明实施方式的说明旨在对本发明的总体发明构思进行解释，而不应当理解为对本发明的一种限制。The technical solution of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numbers indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be understood as a limitation of the present invention.
另外，在下面的详细描述中，为便于解释，阐述了许多具体的细节以提供对本披露实施例的全面理解。然而明显地，一个或多个实施例在没有这些具体细节的情况下也可以被实施。Additionally, in the following detailed description, for convenience of explanation, numerous specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details.
参见图1A，雾化电晕油烟废气净化装置100大致成圆筒形状。筒状的壳体60的两端分别设置有进气口10和出气口50。进气口10和出气口50都设置成直径小于壳体60的直径的环形台阶。Referring to FIG. 1A , the atomizing corona oil fume exhaust gas purification device 100 is generally in a cylindrical shape. The air inlet 10 and the air outlet 50 are respectively provided at both ends of the cylindrical housing 60 . Both the air inlet 10 and the air outlet 50 are provided as annular steps with a diameter smaller than that of the housing 60 .
具体地，雾化电晕油烟废气净化装置100的各部件名称中的动态的含义是指其中的处理废气的部件是可以转动，相对于现有技术中的静止不动的情形来说是动态的，也就是是可以转动或旋转的含义。Specifically, the dynamic meaning in the names of the components of the atomized corona oil fume exhaust gas purification device 100 means that the exhaust gas treatment components can rotate, which is dynamic compared to the static situation in the prior art. , which means it can turn or rotate.
电凝并部件20、雾化电晕旋转部件30、动态吸附板40等部件都设置在壳体60内。如前所述，本申请为了实现便于收集处理后的油烟颗粒物，在壳体60的底部设置有长条形的 收油槽61，雾化电晕旋转部件30、动态吸附板40在旋转过程中将收集到的油烟颗粒物甩到壳体60的内壁上。将它们统一设置在一个壳体内，可以共用一个收油槽61，简化了结构。根据需要可以在收油槽61的下面上设置一个收油盒62，通过该收油槽61上的开口可以将收油槽61和收油盒62相连通，从而可以拆卸下收油盒62将收油盒62中的油烟颗粒物排放掉。在一个示例中，壳体60的底部或四个角处还可以设置支撑腿63。The electrocoagulation component 20 , the atomizing corona rotating component 30 , the dynamic adsorption plate 40 and other components are all arranged in the housing 60 . As mentioned above, in this application, in order to facilitate the collection of processed oil fume particles, a long strip is provided at the bottom of the housing 60 The oil collecting tank 61, the atomizing corona rotating component 30, and the dynamic adsorption plate 40 throw the collected oil smoke particles onto the inner wall of the housing 60 during the rotation process. By arranging them uniformly in one housing, they can share an oil collecting tank 61, thus simplifying the structure. As needed, an oil collecting box 62 can be provided below the oil collecting tank 61. The oil collecting tank 61 and the oil collecting box 62 can be connected through the opening on the oil collecting tank 61, so that the oil collecting box 62 can be removed and the oil collecting box can be removed. The oil fume particles in 62 are discharged. In one example, supporting legs 63 may also be provided at the bottom or four corners of the housing 60 .
待净化的油烟废气先从进气口10进入，然后依次穿过电凝并部件20、雾化电晕旋转部件30、动态吸附板40并最终从出气口50流出。The oil fume exhaust gas to be purified first enters from the air inlet 10 , then passes through the electrocoagulation and merging component 20 , the atomizing corona rotating component 30 , the dynamic adsorption plate 40 in sequence, and finally flows out from the air outlet 50 .
电凝并部件20配置成使得油烟废气中的油烟颗粒物荷电凝并团聚。所述雾化电晕旋转部件30包括通水轴31、位于通水轴31上间隔分布的雾化喷嘴34和在通水轴31表面上布置成绞笼形状的多个放电电极33，所述多个放电电极33通过旋转将经过雾化电晕处理后的油烟颗粒物甩到所述壳体60的内壁上。The electrocoagulation and merging component 20 is configured to charge, coagulate and agglomerate the oil fume particles in the oil fume exhaust gas. The atomizing corona rotating component 30 includes a water shaft 31, atomizing nozzles 34 spaced on the water shaft 31, and a plurality of discharge electrodes 33 arranged in a cage shape on the surface of the water shaft 31. The plurality of discharge electrodes 33 rotate to throw the oil fume particles that have undergone atomization corona treatment onto the inner wall of the housing 60 .
所述动态吸附板40包括转动轴41和布置在其上能够旋转的吸附极板42，所述吸附极板42把剩余的油烟颗粒物的至少一部分甩到壳体60的内壁上。The dynamic adsorption plate 40 includes a rotating shaft 41 and a rotatable adsorption plate 42 disposed thereon. The adsorption plate 42 throws at least part of the remaining oil smoke particles onto the inner wall of the housing 60 .
在一个实施例中，电凝并部件20与壳体60的内部形状匹配或一致。也就是，电凝并部件20的周边与壳体60密封连接，防止油烟废气从电凝并部件20的周边穿过，导致部分油烟废气未得到电凝并处理。In one embodiment, electrocoagulation component 20 matches or conforms to the interior shape of housing 60 . That is, the periphery of the electrocoagulation and merging component 20 is sealingly connected to the casing 60 to prevent the oil fume exhaust gas from passing through the periphery of the electrocoagulation and merging component 20 , resulting in part of the oil fume exhaust gas not being electrocoagulated and treated.
雾化电晕旋转部件30的通水轴31与动态吸附板40的转动轴41设置成分离的部件，可以允许根据希望调整旋转方向。例如通水轴31通过顺时针旋转来形成顺时针的第一涡流，而转动轴41可以设置成逆时针旋转来形成逆时针的第二涡流，通过把第一涡流和第二涡流设置成反向的，可以在壳体60内产生更大的气流扰动，让更多的油烟废气通过动态吸附板40的吸附极板42，产生更高效率的静电吸附效果，提高了净化效率。The water passing axis 31 of the atomizing corona rotating component 30 and the rotating axis 41 of the dynamic adsorption plate 40 are provided as separate components, which allows the rotation direction to be adjusted as desired. For example, the water passage shaft 31 rotates clockwise to form a clockwise first vortex, and the rotating shaft 41 can be set to rotate counterclockwise to form a counterclockwise second vortex. By setting the first vortex and the second vortex in opposite directions, , can generate greater air flow disturbance in the casing 60, allowing more oil fume exhaust gas to pass through the adsorption plate 42 of the dynamic adsorption plate 40, producing a more efficient electrostatic adsorption effect, and improving the purification efficiency.
参见图1B，在雾化电晕油烟废气净化装置100'中，雾化电晕旋转部件30的通水轴31可以设置成与动态吸附板40的转动轴为同一个轴。如此，将在壳体60内形成统一方向的涡旋气流，通过调整旋转速度可以使得更多的油烟废气与壳体60的内壁碰撞和将更多的油烟颗粒物甩到壳体60的内壁上，更加有利于收集油烟颗粒物，起到更好的自清洁效果。Referring to FIG. 1B , in the atomizing corona oil fume exhaust gas purification device 100 ′, the water passage axis 31 of the atomizing corona rotating component 30 can be arranged to be the same axis as the rotation axis of the dynamic adsorption plate 40 . In this way, a vortex airflow in the same direction will be formed in the casing 60. By adjusting the rotation speed, more oil fume exhaust gas can collide with the inner wall of the casing 60 and more oil fume particles can be thrown onto the inner wall of the casing 60. It is more conducive to collecting oil smoke particles and achieving a better self-cleaning effect.
参见图1C，在雾化电晕油烟废气净化装置100”中，电凝并部件20’还可以设置成与壳体60的内壁形成有一定的缝隙，从而允许电凝并部件20’可以通过自身的转动轴驱动或集成在通水轴31上随着雾化电晕旋转部件30同时旋转。将电凝并部件20’集成在通水轴31的一端上，由其带动旋转，可以进一步简化结构。Referring to Figure 1C, in the atomizing corona oil fume exhaust gas purification device 100", the electrocoagulation and merging component 20' can also be arranged to form a certain gap with the inner wall of the housing 60, thereby allowing the electrocoagulation and merging component 20' to pass through itself The rotating shaft is driven or integrated on the water shaft 31 to rotate simultaneously with the atomizing corona rotating component 30. The electrocoagulation and merging component 20' is integrated on one end of the water shaft 31 and is driven to rotate by it, which can further simplify the structure. .
类似于关于图1B所论述的，电凝并部件20’可以设置成能够旋转的，如此，电凝并部 件20’、雾化电晕旋转部件30和动态吸附板40都可以设置在同一个通水轴31上进行旋转，简化了结构，而且更利于产生更强的气流涡旋，更大的流量的油烟废气通过净化装置，更多的油烟颗粒物会甩到壳体60的内壁上。一个的更好的优点是整个装置不再需要清洗，都可以实现自清洁。Similar to what was discussed with respect to Figure 1B, the electrocoagulation component 20' may be configured to be rotatable such that the electrocoagulation component The component 20', the atomizing corona rotating component 30 and the dynamic adsorption plate 40 can all be arranged on the same water axis 31 for rotation, which simplifies the structure and is more conducive to generating stronger airflow vortices and larger flow rates. When the oil fume exhaust gas passes through the purification device, more oil fume particles will be thrown onto the inner wall of the housing 60 . An even better advantage is that the entire device no longer needs to be cleaned and can be self-cleaning.
在一些实施例中，电凝并部件20设置成万向拉丝花部件进行电凝并处理。In some embodiments, the electrocoagulation component 20 is configured as a universal wire drawing component for electrocoagulation and treatment.
参见图2A，所述电凝并部件20包括气流网孔板21和布置在气流网孔板21上的多个万向拉花丝导体22，其中所述气流网孔板21上设置有多个气流网孔23，相邻的气流网孔23之间设置有万向拉丝导体22。Referring to Figure 2A, the electrocoagulation component 20 includes an airflow mesh plate 21 and a plurality of universal filament conductors 22 arranged on the airflow mesh plate 21, wherein a plurality of airflow meshes are provided on the airflow mesh plate 21. Mesh 23, a universal wire drawing conductor 22 is provided between adjacent airflow meshes 23.
所述气流网孔23在气流网孔板21上布置成多排气流网孔23，并且每排气流网孔23之间的气流网孔23间隔分布。The air flow mesh 23 is arranged as multiple exhaust flow meshes 23 on the air flow mesh plate 21 , and the air flow meshes 23 between each exhaust flow mesh 23 are spaced apart.
相邻两排的气流网孔23之间的四个靠近的气流网孔23的中心区域上设置有一个万向拉丝导体22，多个万向拉丝导体22之间通过导电线24连接。A universal wire drawing conductor 22 is provided in the center area of four adjacent air flow mesh holes 23 between two adjacent rows of air flow mesh holes 23 , and the plurality of universal wire drawing conductors 22 are connected by conductive wires 24 .
由钨丝、钢丝或芒刺制成的万向拉花丝导体22的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。所述气流网孔23成圆形、椭圆形或矩形，所述万向拉丝导体22成四角星形，相邻的两排万向拉丝导体22分别接在交流高压电源高压极和接地极上。The shape of the universal drawn wire conductor 22 made of tungsten wire, steel wire or burr is sawtooth, needle point, spike, thorn barbed wire or wire mesh. The airflow mesh 23 is in a circular, oval or rectangular shape, the universal wire drawing conductor 22 is in a four-pointed star shape, and two adjacent rows of the universal wire drawing conductors 22 are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
由于交流高压电源波形是正负交错的，因此电凝并部件20会产生规律交替的电场变化。当带电油烟颗粒物经过时，由于变化电场的交替作用，正负带电颗粒会进行运动，从而进行碰撞和凝并，小颗粒物会凝并成大颗粒物。Since the AC high-voltage power supply waveform is alternating between positive and negative, the electrocoagulation component 20 will produce regular alternating electric field changes. When charged oil fume particles pass by, due to the alternating effect of the changing electric field, the positively and negatively charged particles will move, causing collision and agglomeration. Small particles will agglomerate into large particles.
参见图2B，所述电凝并部件20包括气流网孔板21和布置在气流网孔板21上的多个万向拉花丝导体22，其中所述气流网孔板21上设置有多个气流网孔23，气流网孔23中设置有万向拉丝导体22。Referring to FIG. 2B , the electrocoagulation component 20 includes an airflow mesh plate 21 and a plurality of universal filigree conductors 22 arranged on the airflow mesh plate 21 , wherein a plurality of airflow meshes are provided on the airflow mesh plate 21 . Mesh 23, the air flow mesh 23 is provided with a universal wire drawing conductor 22.
所述气流网孔23在气流网孔板21上布置成多排气流网孔23，并且每排气流网孔23之间的气流网孔23间隔分布。The air flow mesh 23 is arranged as multiple exhaust flow meshes 23 on the air flow mesh plate 21 , and the air flow meshes 23 between each exhaust flow mesh 23 are spaced apart.
每个气流网孔23的中心区域上设置有一个万向拉丝导体22，多个万向拉丝导体22之间通过导电线24连接。A universal wire drawing conductor 22 is provided in the central area of each airflow mesh 23 , and multiple universal wire drawing conductors 22 are connected by conductive wires 24 .
由钨丝、钢丝或芒刺制成的万向拉花丝导体22的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。所述气流网孔23成圆形、椭圆形或矩形，所述万向拉丝导体22优选布置成米字形或从中心向外辐射形。设置成这种形式，可以使得万向拉花丝导体22的放电区域更好地与油烟废气气流接触，从而达到更好的处理效果。设置成大致米字形可以起到均匀气流的功能，使得气流分布更加均匀。 The shape of the universal drawn wire conductor 22 made of tungsten wire, steel wire or burr is sawtooth, needle point, spike, thorn barbed wire or wire mesh. The airflow mesh 23 is in a circular, elliptical or rectangular shape, and the universal wire drawing conductor 22 is preferably arranged in a m-shape or a radiating shape from the center. Arranged in this form, the discharge area of the universal drawn filament conductor 22 can be in better contact with the oil fume exhaust gas flow, thereby achieving better treatment effects. Setting it into a roughly rice-shaped shape can achieve the function of uniform airflow and make the airflow distribution more even.
相邻的两排万向拉丝导体22分别接在交流高压电源高压极和接地极上，可替代地，还可以布置成相邻的两个万向拉花丝导体22分别接电源高压极和接地极上。Two adjacent rows of universally drawn wire conductors 22 are respectively connected to the high-voltage pole and the ground electrode of the AC high-voltage power supply. Alternatively, two adjacent rows of universally drawn wire conductors 22 can be arranged to be respectively connected to the high-voltage pole and the ground electrode of the power supply. superior.
由于交流高压电源波形是正负交错的，因此电凝并部件20会产生规律交替的电场变化。当带电油烟颗粒物经过时，由于变化电场的交替作用，正负带电颗粒会进行运动，从而进行碰撞和凝并，小颗粒物会凝并成大颗粒物。Since the AC high-voltage power supply waveform is alternating between positive and negative, the electrocoagulation component 20 will produce regular alternating electric field changes. When charged oil fume particles pass by, due to the alternating effect of the changing electric field, the positively and negatively charged particles will move, causing collision and agglomeration. Small particles will agglomerate into large particles.
参见图2C，所述电凝并部件20包括气流网孔板21和布置在气流网孔板21上的多个万向拉花丝导体22，其中所述气流网孔板21上设置有多个气流网孔23，气流网孔23中设置有万向拉花丝导体22，万向拉丝花导体22中设置有通气孔25。Referring to Figure 2C, the electrocoagulation and combining component 20 includes an airflow mesh plate 21 and a plurality of universal filament conductors 22 arranged on the airflow mesh plate 21, wherein a plurality of airflow meshes are provided on the airflow mesh plate 21. The mesh 23 and the airflow mesh 23 are provided with universal drawn wire conductors 22, and the universal drawn wire conductors 22 are provided with ventilation holes 25.
所述气流网孔23在气流网孔板21上布置成多排气流网孔23，并且每排气流网孔23之间的气流网孔23间隔分布。The air flow mesh 23 is arranged as multiple exhaust flow meshes 23 on the air flow mesh plate 21 , and the air flow meshes 23 between each exhaust flow mesh 23 are spaced apart.
每个气流网孔23的中心区域上设置有一个万向拉花丝导体22，每个万向拉丝花导体22中设置有一个通气孔25，多个万向拉花丝导体22之间通过导电线24连接。A universal drawn filament conductor 22 is provided in the central area of each airflow mesh 23 . Each universal drawn filament conductor 22 is provided with a ventilation hole 25 . Conductive wires 24 pass between the plurality of universal drawn filament conductors 22 . connect.
所述气流网孔23成圆形、椭圆形或矩形，所述万向拉花丝导体22布置成带有多个均匀排布放电丝26的圆环形，通气孔25是圆形的；相邻的万向拉花丝导体22分别接在交流高压电源高压极和接地极上。The airflow mesh 23 is circular, elliptical or rectangular, the universal filament conductor 22 is arranged in an annular shape with a plurality of uniformly arranged discharge wires 26, the ventilation holes 25 are circular; adjacent The universal drawn filament conductors 22 are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
由钨丝、钢丝或芒刺制成的放电丝26的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。The shape of the discharge wire 26 made of tungsten wire, steel wire or barbed wire is sawtooth, needle point, spike, thorn-shaped barbed wire or wire mesh.
由于交流高压电源波形是正负交错的，因此电凝并部件20会产生规律交替的电场变化。当带电油烟颗粒物经过万向拉花丝导体22的外围和经过其对应的通气孔25时，由于变化电场的交替作用，正负带电颗粒会进行运动，这样能起到双重放电处理的效果，从而能更好地进行碰撞和凝并，小颗粒物会凝并成大颗粒物，改善了处理效果。Since the AC high-voltage power supply waveform is alternating between positive and negative, the electrocoagulation component 20 will produce regular alternating electric field changes. When the charged oil fume particles pass through the periphery of the universally drawn filament conductor 22 and its corresponding vent hole 25, due to the alternating effect of the changing electric field, the positive and negative charged particles will move, which can achieve the effect of double discharge processing, thereby achieving Better collision and agglomeration, small particles will agglomerate into large particles, improving the treatment effect.
参见图2D，所述电凝并部件20包括气流网孔板21和布置在气流网孔板21上的多个鲍尔环结构形式的放电导体花22，其中所述气流网孔板21上设置有多个气流网孔23，气流网孔23中设置有放电导体花22。Referring to Figure 2D, the electrocoagulation and combining component 20 includes an airflow mesh plate 21 and a plurality of discharge conductor flowers 22 in the form of Pall ring structures arranged on the airflow mesh plate 21, wherein the airflow mesh plate 21 is provided with There are a plurality of airflow meshes 23, and discharge conductor flowers 22 are provided in the airflow meshes 23.
所述气流网孔23在气流网孔板21上布置成多排气流网孔，并且每排气流网孔23之间的气流网孔间隔分布。The air flow mesh 23 is arranged as multiple exhaust flow meshes on the air flow mesh plate 21 , and the air flow meshes between each exhaust flow mesh 23 are spaced apart.
每个气流网孔23的中心区域上设置有一个放电导体花22，每个放电导体花22包括多个沿着形成气流网孔的空间壁上间隔交错分布的舌片28，多个舌片28之间通过导电线连接。A discharge conductor flower 22 is provided in the central area of each airflow mesh 23. Each discharge conductor flower 22 includes a plurality of tongues 28 distributed staggered along the space wall forming the airflow mesh. The plurality of tongues 28 are connected by conductive wires.
所述气流网孔23内除所述多个舌片28之外的中心区域形成允许油烟废气通过的通气孔。The central area of the airflow mesh 23 except for the plurality of tongues 28 forms a ventilation hole that allows oil fume exhaust gas to pass.
所述气流网孔23成圆形、椭圆形或矩形，每个气流网孔23内的多个所述舌片28呈现 由花瓣形成的圆环形式，通气孔是圆形的。The airflow mesh 23 is in a circular, oval or rectangular shape, and a plurality of tongues 28 in each airflow mesh 23 present a The vents are circular in the form of a donut formed by the petals.
相邻的放电导体花22分别接在交流高压电源高压极和接地极上。The adjacent discharge conductor flowers 22 are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
由钨丝、钢丝或芒刺制成的舌片28的形状为锯齿、针尖、尖刺、蒺藜状刺绳或丝网。The shape of the tongue 28 made of tungsten wire, steel wire or burr is sawtooth, needle point, spike, thorn-like barbed wire or wire mesh.
通过设置成鲍尔环结构形式的放电导体花22可以具有阻力小、气体通量大、舌片28弹性大、内部比表面积大从而导致放电效果更高的优点。The discharge conductor flower 22 arranged in the form of a Pall ring structure can have the advantages of small resistance, large gas flux, large elasticity of the tongue piece 28, and large internal specific surface area, resulting in higher discharge effect.
参见图3A，雾化电晕旋转部件30’可以设置成在绞笼式电晕放电部件的前面还包括雾化喷嘴组件的形式，该雾化喷嘴组件包括多个喷嘴34和支撑板35，所述多个喷嘴34均匀布置在支撑板35上，并且通过管道与外面的雾化供水系统连接，使得可以将水等液体从喷嘴34中喷出。Referring to Figure 3A, the atomizing corona rotating component 30' may be provided in the form of an atomizing nozzle assembly in front of the cage-type corona discharge component. The atomizing nozzle assembly includes a plurality of nozzles 34 and a support plate 35, so The plurality of nozzles 34 are evenly arranged on the support plate 35 and are connected to the external atomization water supply system through pipes, so that liquids such as water can be sprayed from the nozzles 34 .
雾化喷嘴组件布置在电凝并部件20和雾化电晕旋转部件30’之间并且喷嘴71朝向雾化电晕旋转部件30’喷射液体。The atomizing nozzle assembly is arranged between the electrocoagulation part 20 and the atomizing corona rotating part 30' and the nozzle 71 injects liquid toward the atomizing corona rotating part 30'.
在一个示例中，多个雾化喷嘴34为空心锥形喷嘴，多个雾化喷嘴34的喷射区域为环形。如此，一方面可以快速传递油烟废气中的热量达到降温效果，另一方面可以达到良好的气载液滴撞击效果形成水包油液滴，由于水包油液滴荷电，可以在后端静电吸附区域(动态吸附板40)捕集。In one example, the plurality of atomizing nozzles 34 are hollow conical nozzles, and the spray areas of the plurality of atomizing nozzles 34 are annular. In this way, on the one hand, the heat in the oil fume exhaust gas can be quickly transferred to achieve a cooling effect; on the other hand, a good impact effect of airborne droplets can be achieved to form oil-in-water droplets. Due to the charge of the oil-in-water droplets, static electricity can be generated at the rear end. The adsorption area (dynamic adsorption plate 40) captures.
通过将雾化喷嘴组件和雾化电晕旋转部件30’结合，可以实现雾化电晕产生等离子体，等离子体体系中含有自由电子、活性基团，可以有效去除VOCs和恶臭气体污染物。By combining the atomizing nozzle assembly and the atomizing corona rotating component 30', the atomizing corona can be used to generate plasma. The plasma system contains free electrons and active groups, which can effectively remove VOCs and malodorous gas pollutants.
所述雾化喷嘴喷射的雾滴的粒径在2-50μm之间，从而喷雾的雾滴细小均匀，实现更好的效果。The particle size of the mist droplets sprayed by the atomizing nozzle is between 2-50 μm, so that the sprayed mist droplets are fine and uniform, achieving better effects.
所述雾化喷嘴34的喷射角度相对于所述壳体60的中心线成25-150°的角度。可以理解，根据处理的油烟废气的风量调节喷射角度、喷射压力以及流量大小，喷射角度介于25-150°，目标实现最佳加湿雾化效果。The spray angle of the atomizing nozzle 34 is at an angle of 25-150° relative to the center line of the housing 60 . It can be understood that the injection angle, injection pressure and flow rate are adjusted according to the air volume of the treated oil fume exhaust gas. The injection angle is between 25-150°, and the goal is to achieve the best humidification and atomization effect.
需要说明的是，雾化喷嘴组件加上动态绞笼(卧式)放电电晕部件的作用是实现雾化电晕，雾化电晕等离子体技术兼顾静电沉积与等离子体二者技术优势，可以实现对油烟废气中多种污染物进行协同控制。It should be noted that the atomizing nozzle assembly plus the dynamic cage (horizontal) discharge corona component is used to achieve atomizing corona. The atomizing corona plasma technology takes into account the technical advantages of both electrostatic deposition and plasma, and can Achieve coordinated control of multiple pollutants in oil fume exhaust gas.
动态绞笼(卧式)放电电晕部件包括放电电极33。放电电极33在负高压直流电源作用下产生负电晕放电。在电晕放电过程中，雾化供水系统通过雾化喷嘴34连续向放电电极33供水，使得放电电极33表面形成电流体动力学雾化薄膜，同时雾化水滴被自由电子和离子高度荷电，在电场作用下高速飞向壳体60实现对油烟及颗粒物的净化。雾化电晕等离子体技术除了具有湿式静电除尘机理，雾化电晕放电增加高速水滴的动力凝并、荷电水滴的静电 凝并以及对微小粉尘的电子荷电等净化机制，因而对微小粉尘具有更高的去除效率。The dynamic cage (horizontal) discharge corona component includes a discharge electrode 33. The discharge electrode 33 generates negative corona discharge under the action of negative high-voltage DC power supply. During the corona discharge process, the atomized water supply system continuously supplies water to the discharge electrode 33 through the atomizing nozzle 34, so that an electrohydrodynamic atomization film is formed on the surface of the discharge electrode 33, and at the same time, the atomized water droplets are highly charged by free electrons and ions. Under the action of the electric field, it flies towards the casing 60 at high speed to purify oil smoke and particulate matter. In addition to the wet electrostatic precipitating mechanism, atomized corona plasma technology also increases the dynamic coalescence of high-speed water droplets and the electrostatic charge of charged water droplets through atomized corona discharge. Purification mechanisms such as coagulation and electronic charging of fine dust, thus having higher removal efficiency for fine dust.
由于可以持续进行放电电极33供水雾化，避免油滴粘污放电电极和收尘电极，确保装置长期稳定而高效地运行，雾化电晕等离子体可去除油烟中VOCs并且消除臭味。此外雾化电晕等离子体可随时净化循环水，最大限度降低污水排放。Since the discharge electrode 33 can continuously atomize the water supply, it avoids oil droplets sticking to the discharge electrode and the dust collection electrode, ensuring long-term stable and efficient operation of the device. The atomized corona plasma can remove VOCs in oil fumes and eliminate odors. In addition, atomized corona plasma can purify circulating water at any time and minimize sewage discharge.
在电晕放电过程中，空气击穿瞬间产生等离子体，等离子体中含有自由电子、高能粒子和活性粒子，其中水雾可以与等离子体进一步发生相互反应生成·OH、·O等高活性自由基和O3等强氧化性分子，·OH、·O等高活性自由基和O3等强氧化性分子可以与油烟废气中VOCs以及具有恶臭异味的气相分子反应生成CO2、H2O等无毒无害小分子物质。During the corona discharge process, air breakdown instantly generates plasma. The plasma contains free electrons, high-energy particles and active particles. Water mist can further interact with the plasma to generate highly active free radicals such as ·OH and ·O. Strong oxidizing molecules such as and O 3 , highly active free radicals such as ·OH and ·O, and strong oxidizing molecules such as O 3 can react with VOCs and gas phase molecules with malodorous odors in oil fume exhaust gas to generate CO 2 , H 2 O, etc. Poisonous and harmless small molecule substances.
在使用中，待净化的油烟颗粒物(本文中简称为第一油烟颗粒物)的粒径介于0.01-2μm之间，该油烟废气中的第一油烟颗粒物在经过电凝并部件20时，该第一油烟颗粒物荷电凝并团聚形成第二油烟颗粒物，该第二油烟颗粒物的粒径大于第一油烟颗粒物的粒径。In use, the particle size of the oil smoke particles to be purified (herein referred to as the first oil smoke particles) is between 0.01-2 μm. When the first oil smoke particles in the oil smoke exhaust gas pass through the electrocoagulation and merging component 20, the first oil smoke particles are One oil smoke particle is charged, condensed and agglomerated to form a second oil smoke particle. The particle size of the second oil smoke particle is larger than the particle size of the first oil smoke particle.
参见图3A和3B，该绞笼电晕放电部件30’包括中心轴31’、叶片框架32和多个放电电极33，每个所述放电电极33的一端连接在中心轴31’上，而另一端连接在叶片框架32上，从而整体上形成为类似绞笼的形状。从图示的横截面可以看到，每个叶片框架32内可以设置5根放电电极33，当然也可以设置更多或更少数量的放电电极33。Referring to Figures 3A and 3B, the cage corona discharge component 30' includes a central axis 31', a blade frame 32 and a plurality of discharge electrodes 33. One end of each discharge electrode 33 is connected to the central axis 31', and the other end of the discharge electrode 33 is connected to the central axis 31'. One end is connected to the blade frame 32, thereby forming a shape similar to a winch as a whole. It can be seen from the cross-section of the figure that five discharge electrodes 33 can be provided in each blade frame 32. Of course, more or less discharge electrodes 33 can also be provided.
所述叶片框架32镂空，所述放电电极33呈螺旋状在叶片框架镂空区域中间隔排列。也就是，整体上放电电极33呈现出螺旋状的形状。The blade frame 32 is hollow, and the discharge electrodes 33 are arranged in a spiral shape at intervals in the hollow area of the blade frame. That is, the discharge electrode 33 has a spiral shape as a whole.
放电电极33可以采用芒刺、钨丝、钼丝或不锈钢丝等材料，放电电极33呈现瓦楞状，宽度介于5-15mm。The discharge electrode 33 can be made of materials such as burrs, tungsten wire, molybdenum wire or stainless steel wire. The discharge electrode 33 is corrugated and has a width ranging from 5 to 15 mm.
放电电极33相对于中心轴31’的轴线侧向倾斜呈一预定角度，放电电极相对于中心轴31’的轴线倾斜设置，具体地10-80度(例如30-60度)，或者100-170度(例如120-150度)。The discharge electrode 33 is laterally inclined at a predetermined angle with respect to the axis of the central axis 31', and the discharge electrode is arranged at an inclination with respect to the axis of the central axis 31', specifically 10-80 degrees (for example, 30-60 degrees), or 100-170 degrees. degree (eg 120-150 degrees).
中心轴31’由电机驱动以实现旋转，由此带动放电电极33旋转，中心轴31’内设有通电管，负高压直流电源为放电电极33供电。放电电极33优选材料为芒刺，因为使用芒刺作为放电电极材料，起晕电压低，放电点密集分布在芒刺材料各处。芒刺电极可以由猪鬃、尼龙丝、钢丝和铜丝中的至少一种制成；中心轴31’可以由铁丝和不锈钢丝中的至少一种制成，由此可以实现更为低廉的成本。The central shaft 31' is driven by a motor to rotate, thereby driving the discharge electrode 33 to rotate. There is a energizing tube inside the central shaft 31', and a negative high-voltage DC power supply supplies power to the discharge electrode 33. The preferred material of the discharge electrode 33 is burr, because using burr as the discharge electrode material has low corona voltage and discharge points are densely distributed throughout the burr material. The barbed electrode can be made of at least one of bristle, nylon wire, steel wire and copper wire; the central shaft 31' can be made of at least one of iron wire and stainless steel wire, thereby achieving a lower cost.
放电电极33或中心轴31’的转速介于60-300r/min，在放电电极33高速旋转过程中，瓦楞状放电电极以及侧向倾斜排列方式使得待处理气体在放电绞笼(即放电电极33旋转形成的空间)中心区域产生涡流。涡流一方面可以提高油烟颗粒物荷电概率，另一方面可以使 得粒径较小的油烟颗粒物彼此黏附形成粒径较大的油烟颗粒物，在上述两方面作用下，油烟颗粒物净化效率可以显著提高。The rotation speed of the discharge electrode 33 or the central axis 31' is between 60-300r/min. During the high-speed rotation of the discharge electrode 33, the corrugated discharge electrodes and the laterally inclined arrangement make the gas to be treated rotate in the discharge cage (i.e., the discharge electrode 33 The space formed by rotation generates vortices in the central area. On the one hand, eddy current can increase the charging probability of oil fume particles; on the other hand, it can make The oil fume particles with smaller particle sizes adhere to each other to form oil fume particles with larger particle sizes. Under the action of the above two aspects, the purification efficiency of oil fume particles can be significantly improved.
由于放电绞笼高速旋转，油烟颗粒物受到电场力和离心力共同作用。Due to the high-speed rotation of the discharge cage, the oil fume particles are acted upon by the electric field force and centrifugal force.
具体地，雾化电晕旋转部件30’提供离心力和电场力，油烟颗粒物在经过动态绞笼(卧式)电晕放电部件30’时，由于负高压直流电源对放电电极33供电使得放电电极33附近气体被电离产生大量负电荷，油烟废气中的大粒径油烟颗粒物在负直流电晕作用下荷负电；与此同时，由于动态绞笼(卧式)电晕放电部件30’中放电电极33处于高速旋转状态，因此可以产生离心力，油烟废气中的大粒径油烟颗粒物在离心力作用下被甩到电晕放电部件30’的圆筒壁表面，然后汇集在收油槽并经收油盒排出。Specifically, the atomizing corona rotating component 30' provides centrifugal force and electric field force. When the oil fume particles pass through the dynamic cage (horizontal) corona discharge component 30', the negative high-voltage DC power supply supplies power to the discharge electrode 33, so that the discharge electrode 33 The nearby gas is ionized to generate a large amount of negative charges, and the large-size oil fume particles in the oil fume exhaust gas are negatively charged under the action of negative DC corona; at the same time, because the discharge electrode 33 in the dynamic cage (horizontal) corona discharge component 30' is in The high-speed rotation state can generate centrifugal force, and the large-size oil fume particles in the oil fume exhaust gas are thrown to the cylindrical wall surface of the corona discharge component 30' under the action of centrifugal force, and then collected in the oil collection tank and discharged through the oil collection box.
参见图3C和图3D，示出了将雾化喷嘴和绞笼式动态电晕放电部件集成在一起的结构。其结构与图3A和3B所示的不同之处在于在设置有放电电极33的通水轴31上，所述多个雾化喷嘴34沿着通水轴31的纵向长度间隔布置成一排，并且所述通水轴31的整个圆周面上布置有多排所述雾化喷嘴34。Referring to Figures 3C and 3D, a structure integrating an atomizing nozzle and a cage-type dynamic corona discharge component is shown. The structure is different from that shown in Figures 3A and 3B in that on the water shaft 31 provided with the discharge electrode 33, the plurality of atomizing nozzles 34 are arranged in a row along the longitudinal length of the water shaft 31, and Multiple rows of atomizing nozzles 34 are arranged on the entire circumferential surface of the water passage shaft 31 .
所述多个雾化喷嘴34为空心锥形喷嘴，所述多个雾化喷嘴34的喷射区域为环形。The plurality of atomizing nozzles 34 are hollow conical nozzles, and the spray areas of the plurality of atomizing nozzles 34 are annular.
所述雾化喷嘴34喷射的雾滴的粒径在2-50μm之间。The particle size of the mist droplets sprayed by the atomizing nozzle 34 is between 2-50 μm.
所述雾化喷嘴34的喷射角度相对于所述通水轴31的中心线成25-150°的角度。The spray angle of the atomizing nozzle 34 is at an angle of 25-150° relative to the center line of the water axis 31 .
通水轴31与外部的供水系统连接，从而实现雾化喷嘴能够喷射出水等液体出来。The water shaft 31 is connected to the external water supply system, so that the atomizing nozzle can spray water and other liquids.
通过沿着通水轴31的纵向长度设置多个雾化喷嘴34，相比图3A的结构可以实现更好的雾化效果，每个喷嘴能更好的将水喷射到相应的放电电极33上。如果仅在通水轴31的一端设置雾化喷嘴，则另一端将不能获得充分的液滴。By arranging multiple atomizing nozzles 34 along the longitudinal length of the water axis 31, a better atomizing effect can be achieved compared to the structure of FIG. 3A, and each nozzle can better spray water onto the corresponding discharge electrode 33. . If an atomizing nozzle is provided only at one end of the water passing shaft 31, sufficient liquid droplets will not be obtained at the other end.
参见图4A，可知动态吸附板40包括转动轴41和安装在转动轴41上的多个吸附极板42，该多个吸附极板42相互间隔开。为了让气流更好地通过多个吸附极板42，优选地吸附极板42以5-20°的圆周角间隔设置在转动轴41上。所述转动轴41可以由外部驱动装置(例如电机)驱动旋转，并由此带动吸附极板42旋转，且旋转速度为500-1500r/mi n。Referring to FIG. 4A , it can be seen that the dynamic adsorption plate 40 includes a rotating shaft 41 and a plurality of adsorbing electrode plates 42 installed on the rotating shaft 41 , and the plurality of adsorbing electrode plates 42 are spaced apart from each other. In order to allow the air flow to better pass through the plurality of adsorption electrode plates 42, it is preferable that the adsorption electrode plates 42 are arranged on the rotation shaft 41 at a circumferential angle interval of 5-20°. The rotating shaft 41 can be driven to rotate by an external driving device (such as a motor), thereby driving the adsorption pole plate 42 to rotate at a speed of 500-1500 r/min.
可以理解，放电电极33的旋转将导致产生某一方向的涡流，为了实现更好的处理效果，优选地转动轴41的旋转方向设置成与其相反，这样能实现更大的气流扰动，吸附极板42可以接触到更多流量的油烟废气。当然，也可以将放电电极33和吸附极板42设置成顺时针或逆时针同向旋转，它们反向旋转也不是必须的，本领域技术人员可以根据实际需要进行选择。It can be understood that the rotation of the discharge electrode 33 will result in the generation of eddy currents in a certain direction. In order to achieve better processing effects, it is preferable that the rotation direction of the rotating shaft 41 is set to be opposite to it, so as to achieve greater air flow disturbance and adsorb the electrode plate. 42 can be exposed to more flow of oil fume exhaust gas. Of course, the discharge electrode 33 and the adsorption plate 42 can also be arranged to rotate clockwise or counterclockwise in the same direction. It is not necessary for them to rotate in the opposite direction. Those skilled in the art can choose according to actual needs.
在实施例中，吸附极板42上设置有多个鱼骨形或瓦楞形的图案。 In the embodiment, the adsorption plate 42 is provided with a plurality of herringbone or corrugated patterns.
所述吸附极板42可以设置成多个，每个吸附极板41可以为铝板、镀锌板或钢板，其中优选铝板，因为铝板质量较轻，散热效果较好，从而不容易着火。The adsorption pole plates 42 can be provided in multiple numbers, and each adsorption pole plate 41 can be an aluminum plate, a galvanized plate or a steel plate, among which the aluminum plate is preferred because the aluminum plate is lighter in weight, has better heat dissipation effect, and is less likely to catch fire.
吸附极板42上可以设置有凸凹的结构，例如鱼骨形、瓦楞形的图案以实现更大的接触油烟气体的接触面积。The adsorption plate 42 may be provided with a convex and concave structure, such as a herringbone-shaped or corrugated pattern, to achieve a larger contact area for oil fume gas.
吸附极板42的排列方向垂直于图1的纸面或垂直于气流的流动方向。The arrangement direction of the adsorption electrode plates 42 is perpendicular to the paper surface of FIG. 1 or perpendicular to the flow direction of the air flow.
动态吸附板40的作用是实现动态的静电吸附，油烟颗粒物在经过动态吸附板40时，由于正高压直流电源接电经由转动轴41或相应的导电连接装置对吸附极板42供电，油烟废气中的荷电油烟颗粒物在静电场作用下被动态吸附板40捕集，在旋转的吸附极板42作用下，油烟颗粒物被甩到壳体60的内壁上，最后经由收油槽61汇集在收油盒62中。The function of the dynamic adsorption plate 40 is to realize dynamic electrostatic adsorption. When the oil fume particles pass through the dynamic adsorption plate 40, the positive high-voltage DC power supply supplies power to the adsorption plate 42 through the rotating shaft 41 or the corresponding conductive connection device. The charged oil smoke particles are captured by the dynamic adsorption plate 40 under the action of the electrostatic field. Under the action of the rotating adsorption plate 42, the oil smoke particles are thrown to the inner wall of the housing 60, and finally collected in the oil collection box through the oil collection tank 61. 62 in.
返回参考图3A，在中心轴31’带动放电电极33例如顺时针或逆时针旋转时，将在壳体60的空腔产生涡流，为了实现更好处理效果，优选地转动轴41带动吸附极板42反向旋转，可以产生另一个方向的涡流，从而增加废气气流的扰动，更好地进行静电吸附。Referring back to Figure 3A, when the central axis 31' drives the discharge electrode 33 to rotate clockwise or counterclockwise, for example, eddy currents will be generated in the cavity of the housing 60. In order to achieve better processing effects, it is preferred that the rotating axis 41 drives the adsorption electrode plate. 42 reverse rotation can generate vortices in another direction, thereby increasing the disturbance of the exhaust gas flow and better performing electrostatic adsorption.
参见图4B，所述动态吸附板40还可以设置成包括转动轴41和布置在转动轴41上成S型弯折结构的多个吸附极板42。可替代地，所述动态吸附板40包括设置在通水轴31的另一端的成S型弯折结构的多个吸附极板42。也就是，可以将通水轴31和驱动轴41进行集成设置，便于更好进行控制。Referring to FIG. 4B , the dynamic adsorption plate 40 can also be configured to include a rotation shaft 41 and a plurality of adsorption pole plates 42 arranged on the rotation shaft 41 in an S-shaped bending structure. Alternatively, the dynamic adsorption plate 40 includes a plurality of adsorption pole plates 42 arranged in an S-shaped bent structure at the other end of the water passing axis 31 . That is to say, the water passing shaft 31 and the driving shaft 41 can be integrated to facilitate better control.
吸附极板42采用S形弯折结构，其可以增大吸附面积，高速旋转可以产生更大的涡流，由于形成涡流且形状设置成S形可以有效延长油烟颗粒物滞留时间，其有利于提高吸附效率。The adsorption plate 42 adopts an S-shaped bending structure, which can increase the adsorption area, and high-speed rotation can generate larger vortices. Since the vortex is formed and the shape is set into an S shape, the residence time of oil fume particles can be effectively prolonged, which is beneficial to improving the adsorption efficiency. .
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (12)

  1. 一种雾化电晕油烟废气净化装置，其特征在于，所述雾化电晕油烟废气净化装置的壳体两端分别设置有进气口和出气口，在壳体内设置有：An atomized corona oil fume exhaust gas purification device, characterized in that the two ends of the housing of the atomization corona oil fume exhaust gas purification device are respectively provided with air inlets and air outlets, and are provided with:
    电凝并部件，配置成使得油烟废气中的油烟颗粒物荷电凝并团聚；The electrocoagulation and merging component is configured to cause the oil fume particles in the oil fume exhaust gas to be charged, coagulated and agglomerated;
    雾化电晕旋转部件，所述雾化电晕旋转部件包括通水轴、位于通水轴上间隔分布的雾化喷嘴和在通水轴表面上布置成绞笼形状的多个放电电极，所述多个放电电极通过旋转将经过雾化电晕处理后的油烟颗粒物甩到所述壳体的内壁上；和An atomizing corona rotating component, the atomizing corona rotating component includes a water passing shaft, atomizing nozzles located at intervals on the water passing shaft, and a plurality of discharge electrodes arranged in a twisted cage shape on the surface of the water passing shaft, so The plurality of discharge electrodes rotate to throw the oil fume particles that have undergone atomization corona treatment onto the inner wall of the housing; and
    动态吸附板，所述动态吸附板包括旋转的吸附极板，所述吸附极板把剩余的油烟颗粒物的至少一部分甩到壳体的内壁上。Dynamic adsorption plate, the dynamic adsorption plate includes a rotating adsorption plate, and the adsorption plate throws at least part of the remaining oil fume particles onto the inner wall of the housing.
  2. 根据权利要求1所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 1, characterized in that,
    所述电凝并部件与壳体的内壁形状匹配或一致。The electrocoagulation component matches or is consistent with the shape of the inner wall of the housing.
  3. 根据权利要求1所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 1, characterized in that,
    所述电凝并部件与壳体的内壁形成有缝隙并且电凝并部件配置成能够在壳体内旋转。A gap is formed between the electrocoagulation and merging component and the inner wall of the casing, and the electrocoagulation and merging component is configured to be rotatable within the casing.
  4. 根据权利要求3所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 3, characterized in that,
    所述电凝并部件集成在通水轴的一端上，并且由通水轴带动其旋转。The electrocoagulation and merging component is integrated on one end of the water passing shaft, and is driven to rotate by the water passing shaft.
  5. 根据权利要求1-4中任一项所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to any one of claims 1-4, characterized in that,
    所述电凝并部件包括气流网孔板和布置在气流网孔板上的多个鲍尔环结构形式的放电导体花，其中所述气流网孔板上设置有多个气流网孔，气流网孔中设置有放电导体花。The electrocoagulation and combining component includes an airflow mesh plate and a plurality of discharge conductor flowers in the form of Pall ring structures arranged on the airflow mesh plate, wherein the airflow mesh plate is provided with a plurality of airflow meshes, and the airflow mesh A discharge conductor flower is provided in the hole.
  6. 根据权利要求5所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 5, characterized in that,
    所述气流网孔在气流网孔板上布置成多排气流网孔，并且每排气流网孔之间的气流网孔间隔分布；The air flow mesh is arranged on the air flow mesh plate into multiple exhaust flow meshes, and the air flow meshes between each exhaust flow mesh are spaced apart;
    每个气流网孔的中心区域上设置有一个放电导体花，每个放电导体花包括多个沿着形成气流网孔的空间壁上间隔交错分布的舌片，多个舌片之间通过导电线连接，A discharge conductor flower is provided in the central area of each airflow mesh. Each discharge conductor flower includes a plurality of tongues distributed staggered along the space wall forming the airflow mesh. Conductive wires pass between the plurality of tongues. connect,
    所述气流网孔内除所述多个舌片之外的中心区域形成允许油烟废气通过的通气孔。 A central area in the airflow mesh, except for the plurality of tongues, forms a vent hole that allows oil fume exhaust gas to pass through.
  7. 根据权利要求6所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 6, characterized in that,
    所述气流网孔成圆形、椭圆形或矩形，每个气流网孔内的多个所述舌片呈现由花瓣形成的圆环形式，通气孔是圆形的；The airflow mesh is circular, oval or rectangular, the plurality of tongues in each airflow mesh are in the form of a ring formed by petals, and the ventilation hole is circular;
    相邻的放电导体花分别接在交流高压电源高压极和接地极上。The adjacent discharge conductor flowers are respectively connected to the high voltage pole and the ground pole of the AC high voltage power supply.
  8. 根据权利要求1-4中任一项所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to any one of claims 1-4, characterized in that,
    在设置有放电电极的通水轴上，所述多个雾化喷嘴沿着通水轴的纵向长度间隔布置成一排，并且所述通水轴的整个圆周面上布置有多排所述雾化喷嘴。On the water shaft provided with the discharge electrode, the plurality of atomizing nozzles are arranged in a row at intervals along the longitudinal length of the water shaft, and multiple rows of the atomizers are arranged on the entire circumferential surface of the water shaft. nozzle.
  9. 根据权利要求8所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 8, characterized in that,
    所述动态吸附板包括转动轴和布置在转动轴上成S型弯折结构的多个吸附极板；或者The dynamic adsorption plate includes a rotating shaft and a plurality of adsorbing pole plates arranged in an S-shaped bending structure on the rotating shaft; or
    所述动态吸附板包括设置在通水轴的另一端的成S型弯折结构的多个吸附极板。The dynamic adsorption plate includes a plurality of adsorption plates arranged in an S-shaped bending structure at the other end of the water axis.
  10. 根据权利要求1-4中任一项所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to any one of claims 1-4, characterized in that,
    所述壳体呈圆筒状，所述壳体的底部设置有收油槽，所述收油槽的下面设置有收油盒，所述收油槽和收油盒通过收油槽上的开口相连通。The housing is cylindrical, and an oil collecting tank is provided at the bottom of the housing. An oil collecting box is provided below the oil collecting tank. The oil collecting tank and the oil collecting box are connected through an opening on the oil collecting tank.
  11. 根据权利要求8所述的雾化电晕油烟废气净化装置，其特征在于，The atomized corona oil fume exhaust gas purification device according to claim 8, characterized in that,
    所述多个雾化喷嘴为空心锥形喷嘴，所述多个雾化喷嘴的喷射区域为环形；The plurality of atomizing nozzles are hollow conical nozzles, and the spray areas of the plurality of atomizing nozzles are annular;
    所述雾化喷嘴喷射的雾滴的粒径在2-50μm之间；The particle size of the mist droplets sprayed by the atomizing nozzle is between 2-50 μm;
    所述雾化喷嘴的喷射角度相对于所述通水轴的中心线成25-150°的角度。The spray angle of the atomizing nozzle is at an angle of 25-150° relative to the center line of the water axis.
  12. 一种使用根据权利要求1-11中任一项所述的雾化电晕油烟废气净化装置的净化方法，包括以下步骤：A purification method using the atomized corona oil fume exhaust gas purification device according to any one of claims 1-11, including the following steps:
    待净化的油烟废气从进气口进入壳体内；The oil fume exhaust gas to be purified enters the housing from the air inlet;
    通过电凝并部件使得油烟废气中的油烟颗粒物荷电凝并团聚；The oil fume particles in the oil fume exhaust gas are charged, coagulated and agglomerated through electrocoagulation components;
    通过雾化电晕旋转部件通过旋转将经过电凝并部件处理后的油烟废气吸入并形成逆时针或顺时针旋转的第一涡流，处理第一涡流中的油烟颗粒物在雾化喷嘴和放电电极的雾化电源处理后，被甩到所述壳体的内壁上； Through the rotation of the atomizing corona rotating component, the oil fume exhaust gas treated by the electrocoagulation component is sucked in and forms a first vortex that rotates counterclockwise or clockwise, and the oil fume particles in the first vortex are processed between the atomizing nozzle and the discharge electrode. After the atomization power supply is processed, it is thrown onto the inner wall of the housing;
    通过动态吸附板中的吸附极板通过旋转形成与第一涡流方向相反的第二涡流，剩余的油烟颗粒物的至少一部分被所述吸附极板吸附后甩到壳体的内壁上。 The adsorption plate in the dynamic adsorption plate rotates to form a second vortex in the opposite direction to the first vortex. At least a part of the remaining oil fume particles are adsorbed by the adsorption plate and then thrown to the inner wall of the casing.
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