WO2020216369A1 - Appareil et procédé de traitement de gaz de contaminants organiques volatils - Google Patents

Appareil et procédé de traitement de gaz de contaminants organiques volatils Download PDF

Info

Publication number
WO2020216369A1
WO2020216369A1 PCT/CN2020/086865 CN2020086865W WO2020216369A1 WO 2020216369 A1 WO2020216369 A1 WO 2020216369A1 CN 2020086865 W CN2020086865 W CN 2020086865W WO 2020216369 A1 WO2020216369 A1 WO 2020216369A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric field
vocs
anode
cathode
treatment
Prior art date
Application number
PCT/CN2020/086865
Other languages
English (en)
Chinese (zh)
Inventor
唐万福
赵晓云
王大祥
段志军
邹永安
奚勇
Original Assignee
上海必修福企业管理有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010296602.1A external-priority patent/CN113522023A/zh
Priority claimed from CN202010295734.2A external-priority patent/CN113521984A/zh
Application filed by 上海必修福企业管理有限公司 filed Critical 上海必修福企业管理有限公司
Priority to CN202090000499.5U priority Critical patent/CN218235209U/zh
Publication of WO2020216369A1 publication Critical patent/WO2020216369A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic components
    • 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
    • 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
    • B03C3/011—Prefiltering; Flow controlling
    • 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
    • B03C3/016—Pretreatment of the gases prior to electrostatic precipitation by acoustic or electromagnetic energy, e.g. ultraviolet light
    • 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
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/06—Plant or installations having external electricity supply dry type characterised by presence of stationary tube electrodes
    • 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
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators

Definitions

  • the invention belongs to the technical field of waste gas treatment, and in particular relates to a VOCs gas treatment device and method.
  • Volatile organic compounds are a kind of pollutants that are very common in indoor and outdoor environments. They mainly include hydrocarbons (alkanes, aromatics, olefins), and hydrocarbon derivatives (halogenated hydrocarbons, Aldehydes, ketones, alcohols, structures containing N/S atoms), etc. Motor vehicle emissions, building materials and decoration, chemical and petrochemical waste gas, printing and coating processes, and catering oil fume are considered to be the main sources of gaseous VOCs in the environment.
  • VOCs are substances that can directly harm the human body and affect the health of the human body. They not only have a stimulating effect on human vision, smell, and respiratory systems, but also damage the heart, lungs and other organs and the nervous system. In addition, VOCs can react with other pollutants in the atmospheric environment, causing local or global environmental problems. For example, under the action of sunlight (ultraviolet light), VOCs can react photochemically with NOx to form fine suspended particles and photochemical smog. Harm to health and reduce crop production.
  • VOCs For high-concentration VOCs (greater than 5000mg/m 3 ), it is suitable for recovery and recycling. There are adsorption method, absorption method, membrane separation method, etc.
  • the physical adsorption method only converts VOCs from gaseous form to adsorbed state.
  • the organic matter of VOCs needs further treatment, and the adsorbent has to undergo repeated regeneration processes.
  • molecular degradation technology is often used to control, mainly including catalytic combustion method, photocatalysis method, low temperature plasma method, photolysis method, photocatalytic oxidation method, etc.
  • catalytic combustion technology is limited by high-priced metal catalysts, excessive energy consumption, catalyst poisoning and deactivation, and the flammable and explosive characteristics of VOCs at high temperatures.
  • the photocatalytic oxidation technology is a method that can achieve the decomposition of low-concentration VOCs at room temperature. It is considered a promising treatment process, but it is also limited by the deactivation of the catalyst and the regeneration of holes by electrons.
  • the photocatalytic oxidation technology can achieve high VOCs removal efficiency at the beginning of the reaction, but during the reaction process, photocatalytic oxidation intermediate deposits will be formed on the surface of the photocatalyst, resulting in a decrease in the catalytic activity of the photocatalyst.
  • UV degradation of VOCs technology is a simple method to eliminate VOCs. At the same time, UV degradation technology does not use catalysts, has lower cost and operability, and has attracted the attention of the industry.
  • the typical technology is UV lamp, because the energy of short-wavelength ultraviolet photons is higher than that of chemical bonds in most pollutant molecules.
  • Bond energy the 185nm wavelength ultraviolet light emitted by the UV lamp has a higher energy (6.7eV), which can be used to destroy and decompose the chemical bond structure of various VOCs, including benzene, toluene, xylene and other difficult organic Molecular structure; another reaction pathway is the photooxidation reaction.
  • the high-energy photons produced by ultraviolet light with a wavelength of 185nm can activate O 2 and H 2 O water vapor molecules to produce a large number of active free radicals with strong oxidizing properties, such as O(1D ), O(3P), hydroxyl radicals (*OH), O 3, etc., can continue to oxidize and decompose VOCs molecules and their newly generated intermediate small molecules, thereby reducing the concentration of pollutants.
  • the purpose of the present invention is to provide a VOCs gas treatment method and device to solve the problem of particulate matter generated in the process of using ultraviolet technology to treat gas containing VOCs, more specifically the problem of nanoparticles .
  • the inventor of the present application discovered new problems in the technology of ultraviolet treatment of VOCs-containing gas through research, and found corresponding technical means to solve these problems.
  • the prior art did not recognize it, but the inventor of the present application found that the product of the gas containing VOCs after UV irradiation contains nanoparticles, especially particles below 50nm, especially particles around 23nm, so it needs to be discharged to The operation of removing nanoparticles in the air is carried out before.
  • the inventors of the present application have found that the electric field dust removal system they invented can effectively remove nanoparticles in the product after UV treatment of VOCs, especially particles below 50nm, and avoid secondary pollution, thus solving the problem of those skilled in the art.
  • Technical problems encountered and achieved unexpected technical effects are encountered and achieved unexpected technical effects.
  • Example 1 provided by the present invention: A VOCs gas processing device, including:
  • It also includes an ultraviolet device and an electric field device, and the ultraviolet device and the electric field device are sequentially arranged along the flow channel from the inlet to the outlet.
  • Example 2 provided by the present invention: including the above example 1, wherein the ultraviolet device includes at least one ultraviolet lamp.
  • Example 3 provided by the present invention including the above example 1 or 2, wherein the ultraviolet light provided by the ultraviolet lamp is single-peak ultraviolet light or double-peak ultraviolet light.
  • the example 4 provided by the present invention includes any one of the above examples 1-3, wherein the main peak of the single-peak ultraviolet light provided by the ultraviolet lamp is 253.7 nm or 185 nm.
  • Example 5 provided by the present invention includes any one of the above examples 1-4, wherein the main peaks of the double-peak ultraviolet light provided by the ultraviolet lamp are 253.7 nm and 185 nm, respectively.
  • Example 6 provided by the present invention: including any one of the above examples 1-5, wherein the electric field device includes: an electric field device inlet, an electric field device outlet, an electric field cathode, and an electric field anode.
  • the electric field cathode and the electric field anode are used for Produce ionization dust removal electric field.
  • Example 7 provided by the present invention: including the above example 6, wherein the electric field anode includes a first anode part and a second anode part, the first anode part is close to the entrance of the electric field device, and the second anode part is close to the At the outlet of the electric field device, at least one cathode support plate is arranged between the first anode part and the second anode part.
  • Example 8 provided by the present invention: including the above example 7, wherein the electric field device further includes an insulation mechanism for achieving insulation between the cathode support plate and the electric field anode.
  • Example 9 provided by the present invention: including the above example 8, wherein an electric field flow channel is formed between the electric field anode and the electric field cathode, and the insulating mechanism is arranged outside the electric field flow channel.
  • Example 10 provided by the present invention includes the above examples 8 or 9, wherein the insulation mechanism includes an insulation part and a heat insulation part.
  • Example 11 provided by the present invention: including the above example 10, wherein the material of the insulating part is a ceramic material or a glass material.
  • Example 12 provided by the present invention: including the above example 10, wherein the insulating portion is an umbrella-shaped string ceramic column, an umbrella-shaped string glass column, a columnar string ceramic column or a columnar glass column, and the inside and outside of the umbrella or the inside and outside of the column are covered with glaze.
  • the insulating portion is an umbrella-shaped string ceramic column, an umbrella-shaped string glass column, a columnar string ceramic column or a columnar glass column, and the inside and outside of the umbrella or the inside and outside of the column are covered with glaze.
  • Example 13 provided by the present invention: including the above example 12, wherein the distance between the outer edge of the umbrella string ceramic column or the umbrella string glass column and the electric field anode is more than 1.4 times the electric field distance, and the umbrella string ceramic column Or the sum of the pitch of the umbrella ledge of the umbrella-shaped glass column is 1.4 times or more of the insulation pitch of the umbrella-shaped ceramic column or umbrella-shaped glass column.
  • the total length of the umbrella edge of the umbrella-shaped ceramic column or umbrella-shaped glass column is the umbrella.
  • the insulation distance of the shaped string ceramic column or umbrella string glass column is more than 1.4 times.
  • Example 14 provided by the present invention includes any one of the above examples 7 to 13, wherein the length of the first anode portion is 1/10 to 1/4, 1/4 to the length of the electric field anode 1/3, 1/3 to 1/2, 1/2 to 2/3, 2/3 to 3/4, or 3/4 to 9/10.
  • Example 15 provided by the present invention includes any one of the above examples 7 to 14, wherein the length of the first anode part is long enough to remove part of dust and reduce accumulation in the insulation mechanism and The dust on the cathode support plate reduces the electric breakdown caused by the dust.
  • Example 16 provided by the present invention: includes any one of the foregoing Examples 7 to 15, wherein the second anode part includes a dust accumulation section and a reserved dust accumulation section.
  • Example 17 provided by the present invention includes any one of the above examples 6 to 16, wherein the electric field cathode includes at least one electrode rod.
  • Example 18 provided by the present invention: including the above example 17, wherein the diameter of the electrode rod is not greater than 3 mm.
  • Example 19 provided by the present invention: including the above examples 17 or 18, wherein the shape of the electrode rod is needle, polygon, burr, threaded rod, or column.
  • Example 20 provided by the present invention: includes any one of the above examples 6 to 19, wherein the electric field anode is composed of a hollow tube bundle.
  • Example 21 provided by the present invention: including the above example 20, wherein the hollow cross section of the electric field anode tube bundle is circular or polygonal.
  • Example 22 provided by the present invention: includes the above example 21, wherein the polygon is a hexagon.
  • Example 23 provided by the present invention: includes any one of the foregoing examples 19 to 22, wherein the tube bundle of the electric field anode is in a honeycomb shape.
  • Example 24 provided by the present invention: includes any one of the foregoing Examples 6 to 23, wherein the electric field cathode penetrates the electric field anode.
  • Example 25 includes any one of the foregoing Examples 1 to 24, wherein the electric field device further includes an auxiliary electric field unit for generating an auxiliary electric field that is not parallel to the ionization dust removal electric field.
  • Example 26 includes any one of the above examples 1 to 24, wherein the electric field device further includes an auxiliary electric field unit, the ionization dust removal electric field includes a flow channel, and the auxiliary electric field unit is used to generate An auxiliary electric field that is not perpendicular to the flow channel.
  • Example 27 provided by the present invention: including the above example 25 or 26, wherein the auxiliary electric field unit includes a first electrode, and the first electrode of the auxiliary electric field unit is arranged at or near the entrance of the ionization dust removal electric field.
  • Example 28 provided by the present invention: including the above example 27, wherein the first electrode is a cathode.
  • Example 29 provided by the present invention: including the above example 27 or 28, wherein the first electrode of the auxiliary electric field unit is an extension of the electric field cathode.
  • Example 31 provided by the present invention: includes any one of the foregoing Examples 25 to 30, wherein the auxiliary electric field unit includes a second electrode, and the second electrode of the auxiliary electric field unit is arranged at or near the ionization dust removal The exit of the electric field.
  • Example 32 provided by the present invention: includes the above example 31, wherein the second electrode is an anode.
  • Example 33 provided by the present invention: includes the above example 31 or 32, wherein the second electrode of the auxiliary electric field unit is an extension of the electric field anode.
  • Example 35 includes any one of the foregoing Examples 25 to 28, 31 and 32, wherein the electrode of the auxiliary electric field and the electrode of the ionization dust removal electric field are arranged independently.
  • Example 36 provided by the present invention: includes any one of the foregoing Examples 6 to 35, wherein the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is 1.667:1-1680:1.
  • Example 37 provided by the present invention: includes any one of the foregoing Examples 6 to 35, wherein the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is 6.67:1 to 56.67:1.
  • Example 38 provided by the present invention: includes any one of the above examples 6 to 37, wherein the diameter of the electric field cathode is 1-3 mm, and the distance between the electric field anode and the electric field cathode is 2.5-139.9 Mm; the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is 1.667:1 to 1680:1.
  • Example 38 provided by the present invention includes any one of the foregoing Examples 6 to 37, wherein the distance between the electric field anode and the electric field cathode is less than 150 mm.
  • Example 40 provided by the present invention: includes any one of the above examples 6 to 37, wherein the distance between the electric field anode and the electric field cathode is 2.5-139.9 mm.
  • Example 41 provided by the present invention: includes any one of the foregoing Examples 6 to 37, wherein the distance between the electric field anode and the electric field cathode is 5-100 mm.
  • Example 42 provided by the present invention: includes any one of the foregoing Examples 6 to 41, wherein the length of the electric field anode is 10-180 mm.
  • Example 43 provided by the present invention: includes any one of the foregoing Examples 6 to 41, wherein the length of the electric field anode is 60-180 mm.
  • Example 44 provided by the present invention: includes any one of the foregoing Examples 6 to 43, wherein the length of the electric field cathode is 30-180 mm.
  • Example 45 provided by the present invention: includes any one of the foregoing Examples 6 to 43, wherein the length of the electric field cathode is 54-176 mm.
  • Example 46 provided by the present invention: includes any one of the foregoing Examples 36 to 45, wherein, when running, the number of coupling times of the ionization dust removal electric field is ⁇ 3.
  • Example 47 provided by the present invention: includes any one of the above examples 6 to 46, wherein the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode, the electric field anode and the electric field The distance between the cathodes, the length of the anode of the electric field, and the length of the cathode of the electric field make the coupling times of the ionization dust removal electric field ⁇ 3.
  • Example 47 provided by the present invention includes any one of the foregoing Examples 6 to 47, wherein the value range of the ionization dust removal electric field voltage is 1kv-50kv.
  • Example 49 includes any one of the foregoing Examples 1 to 47, wherein the electric field device further includes a plurality of connecting housings, and the series electric field stages are connected through the connecting housings.
  • Example 50 provided by the present invention: includes the above example 49, wherein the distance between adjacent electric field levels is 1.4 times or more of the pole pitch.
  • Example 51 includes any one of the above examples 1 to 50, wherein the VOCs gas processing device further includes an adsorption device, and the adsorption device is arranged between the ultraviolet device and the electric field device between.
  • the example 52 provided by the present invention includes the above example 51, wherein the adsorption device is provided with an adsorption material.
  • Example 53 provided by the present invention: includes the above example 52, wherein the adsorption material includes at least one of activated carbon and molecular sieve.
  • Example 54 provided by the present invention: A method for processing VOCs gas, including the following steps:
  • the gas is subjected to UV treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particulate matter in the product after UV treatment of VOCs.
  • Example 55 provided by the present invention: including Example 54, wherein the VOCs gas treatment method further includes subjecting the product after UV treatment of VOCs to adsorption treatment before the electric field dust removal treatment, and then performing the electric field dust removal treatment.
  • Example 56 provided by the present invention: including Example 55, wherein the adsorbent for the adsorption treatment is activated carbon and/or molecular sieve.
  • Example 57 provided by the present invention: includes any one of Examples 54-56, wherein at least one ultraviolet lamp is used during UV treatment.
  • Example 58 provided by the present invention includes any one of the foregoing Examples 54-57, wherein the ultraviolet light provided by the ultraviolet lamp is single-peak ultraviolet light or double-peak ultraviolet light.
  • Example 59 provided by the present invention: includes any one of the foregoing Examples 54-58, wherein the main peak of the single-peak ultraviolet light provided by the ultraviolet lamp is 253.7 nm or 185 nm.
  • Example 60 provided by the present invention: includes the foregoing Examples 54-59, wherein the main peaks of the dual-peak ultraviolet light provided by the ultraviolet lamp are 253.7 nm and 185 nm, respectively.
  • Example 61 provided by the present invention:
  • the electric field dust removal processing method including any one of Examples 54-60 further includes: a method for providing an auxiliary electric field, including the following steps:
  • An auxiliary electric field is generated in the flow channel, and the auxiliary electric field is not perpendicular to the flow channel.
  • Example 62 provided by the present invention: including Example 61, wherein the auxiliary electric field includes a first electrode, and the first electrode is arranged at or near the entrance of the ionization dust removal electric field.
  • Example 63 provided by the present invention: including Example 62, wherein the first electrode is a cathode.
  • Example 64 provided by the present invention: includes any one of Examples 62 or 63, wherein the first electrode is an extension of the electric field cathode.
  • Example 66 provided by the present invention: includes any one of Examples 61 to 65, wherein the auxiliary electric field includes a second electrode, and the second electrode is arranged at or near the outlet of the ionization dust removal electric field.
  • Example 67 provided by the present invention: including Example 66, wherein the second electrode is an anode.
  • Example 68 provided by the present invention: includes Example 66 or 67, wherein the second electrode is an extension of the electric field anode.
  • Example 70 provided by the present invention: includes any one of Examples 61 to 63, wherein the first electrode is independently arranged with the electric field anode and the electric field cathode.
  • Example 71 provided by the present invention: including any one of Examples 61, 66, and 67, wherein the second electrode is arranged independently of the electric field anode and the electric field cathode.
  • Example 72 provided by the present invention:
  • the electric field dust removal processing method including Examples 54-71 also includes: a method for reducing the coupling of dust removal electric field, including the following steps:
  • Example 73 provided by the present invention: including Example 72, which includes selecting the ratio of the dust collection area of the electric field anode to the discharge area of the electric field cathode.
  • Example 74 provided by the present invention includes Example 73, wherein the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is selected to be 1.667:1 to 1680:1.
  • Example 75 provided by the present invention: including Example 73, wherein the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is selected to be 6.67:1-56.67:1.
  • Example 76 provided by the present invention: includes any one of Examples 72 to 75, including selecting the electric field cathode to have a diameter of 1-3 mm, and the distance between the electric field anode and the electric field cathode to be 2.5-139.9 mm
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is 1.667:1 to 1680:1.
  • Example 77 provided by the present invention: includes any one of Examples 72 to 76, wherein the distance between the electric field anode and the electric field cathode is selected to be less than 150 mm.
  • Example 78 provided by the present invention: includes any one of Examples 72 to 76, wherein the distance between the electric field anode and the electric field cathode is selected to be 2.5-139.9 mm.
  • Example 79 provided by the present invention: includes any one of Examples 72 to 76, wherein the distance between the electric field anode and the electric field cathode is selected to be 5-100 mm.
  • Example 80 provided by the present invention: includes any one of Examples 72 to 79, which includes selecting the electric field anode length to be 10-180 mm.
  • Example 81 provided by the present invention: includes any one of Examples 72 to 79, which includes selecting the electric field anode length to be 60-180 mm.
  • Example 82 provided by the present invention: includes any one of Examples 72 to 81, including selecting the electric field cathode length to be 30-180 mm.
  • Example 83 provided by the present invention: includes any one of Examples 72 to 81, including selecting the electric field cathode length to be 54-176 mm.
  • Example 84 provided by the present invention: includes any one of Examples 72 to 83, wherein it includes selecting that the electric field cathode includes at least one electrode rod.
  • Example 85 provided by the present invention: including Example 84, including selecting the electrode rod to have a diameter not greater than 3 mm.
  • Example 86 provided by the present invention: includes Example 84 or 85, which includes selecting the shape of the electrode rod to be needle-like, polygonal, burr-like, threaded rod-like or cylindrical.
  • Example 87 provided by the present invention: includes any one of Examples 72 to 86, including selecting that the electric field anode is composed of a hollow tube bundle.
  • Example 88 provided by the present invention: includes Example 87, wherein the hollow section including the anode tube bundle is selected to be circular or polygonal.
  • Example 89 provided by the present invention: includes Example 88, which includes selecting the polygon as a hexagon.
  • Example 90 provided by the present invention: includes any one of Examples 87 to 89, wherein the tube bundle including the selection of the electric field anode is in a honeycomb shape.
  • Example 91 provided by the present invention: includes any one of Examples 72 to 90, which includes selecting the electric field cathode to penetrate into the electric field anode.
  • Example 92 provided by the present invention: includes any one of Examples 72 to 91, wherein the electric field anode size or/and the electric field cathode size are selected such that the number of electric field couplings is ⁇ 3.
  • Example 93 provided by the present invention: includes any one of Examples 54 to 92, wherein the product after UV treatment of VOCs contains nanoparticles, and the removal of particulate matter in the product after UV treatment of VOCs includes removal of UV treatment VOCs Nanoparticles in the final product.
  • Example 94 provided by the present invention: includes any one of Examples 54 to 93, wherein the product after UV treatment of VOCs contains particulate matter less than 50nm, and the removal of particulate matter in the product after UV treatment of VOCs includes removing UV After processing VOCs, the product contains particles smaller than 50nm.
  • Example 95 includes any one of Examples 54 to 94, wherein the product after UV treatment of VOCs contains 15-35 nanometers of particulate matter, and the particulate matter in the product after removal of UV treatment VOCs includes Remove 15-35 nanometer particles in the product after UV treatment of VOCs.
  • Example 96 provided by the present invention: includes any one of Examples 54 to 95, wherein the product after UV treatment of VOCs contains 23nm particulate matter, and the removal of particulate matter in the product after UV treatment of VOCs includes removing UV treatment 23nm particles in the product after VOCs.
  • Example 97 provided by the present invention: includes any one of Examples 54 to 96, wherein the removal rate of 23nm particulate matter in the product after the UV treatment of VOCs is ⁇ 93%.
  • Example 98 provided by the present invention: includes any one of Examples 54 to 97, wherein the removal rate of 23nm particulate matter in the product after the UV treatment of VOCs is ⁇ 95%.
  • Example 99 provided by the present invention: including any one of Examples 54 to 98, wherein the removal rate of 23nm particulate matter in the product after the UV treatment of VOCs is ⁇ 99.99%.
  • the gas includes all gases containing VOCs.
  • the product after UV treatment of VOCs contains nanoparticles in the "nanoparticulate matter" refers to particulate matter with a particle size of less than 1 ⁇ m.
  • Fig. 1 is a schematic structural diagram of a VOCs gas processing device in Example 1 of the present invention.
  • FIG. 2 is a schematic diagram of the structure of the electric field generating unit in the embodiment 2-15 of the present invention.
  • Fig. 3 is an A-A view of the electric field generating unit of Fig. 2 in embodiment 2, embodiment 5 and embodiment 11 of the present invention.
  • Fig. 4 is an A-A view of the electric field generating unit of Fig. 2 with the length and angle marked in embodiment 2 and embodiment 5 of the present invention.
  • FIG. 5 is a schematic diagram of the structure of the electric field device with two electric field levels in Embodiment 2, Embodiment 5 and Embodiment 11 of the present invention.
  • FIG. 6 is a schematic structural diagram of an electric field device in Embodiment 16 of the present invention.
  • FIG. 7 is a schematic structural diagram of an electric field device in Embodiment 18 of the present invention.
  • FIG. 8 is a schematic structural diagram of an electric field device in Embodiment 19 of the present invention.
  • Fig. 9 is a schematic diagram of the flow chart of the test device of Example 20 of the present invention.
  • FIG. 10 is a curve of the VOCs concentration and the VOCs removal rate at the outlet of the electric field device of Example 20 of the present invention over time.
  • Fig. 11 is a curve of the CO 2 concentration at the outlet of the electric field device of Example 20 of the present invention as a function of processing time.
  • Fig. 12 is a graph showing the variation of PM2.5 at the outlet of the electric field device according to the embodiment 20 of the present invention with processing time.
  • Fig. 13 is a schematic flow chart of the test device of Example 26 of the present invention.
  • Fig. 14 is a curve of VOCs concentration changes over time at the air inlet, air outlet, and air outlet of the adsorption device when purifying low VOCs concentration in Example 26 of the present invention.
  • Fig. 15 is a graph showing the change of CO 2 concentration at the inlet, outlet, and outlet of the adsorption device of the ultraviolet device with time when purifying low VOCs concentration in Example 26 of the present invention.
  • Fig. 16 is a curve of VOCs concentration changes with time at the air inlet, air outlet, and air outlet of the adsorption device when purifying high VOCs concentration in Example 26 of the present invention.
  • Fig. 17 is a graph showing the change of CO 2 concentration at the air inlet, outlet, and outlet of the adsorption device of the ultraviolet device with time when purifying high VOCs concentration in Example 26 of the present invention.
  • a VOCs gas treatment device which includes: an inlet, an outlet, and a flow channel between the inlet and the outlet; and also includes an ultraviolet device, an electric field device, and the ultraviolet device and the electric field device from The direction from the inlet to the outlet is sequentially arranged along the flow channel.
  • the electric field device may include an electric field cathode and an electric field anode, and an ionization dust removal electric field is formed between the electric field cathode and the electric field anode.
  • an ionization dust removal electric field is formed between the electric field cathode and the electric field anode.
  • the oxygen ions in the gas will be ionized and form a large number of charged oxygen ions.
  • the oxygen ions combine with dust and other particles in the gas to charge the particles, and the electric field anode adsorbs the negatively charged particles The force causes the particles to be adsorbed on the anode of the electric field to remove the particles in the gas.
  • the VOCs gas processing device further includes an adsorption device, and the adsorption device is disposed in the flow channel of the VOCs gas processing device. In some embodiments of the present invention, the adsorption device is located between the ultraviolet device and the electric field device.
  • the adsorption device includes an air inlet and an air outlet, the air inlet of the adsorption device communicates with the air outlet of the ultraviolet device, and the air outlet of the adsorption device is connected to the electric field.
  • the electric field device inlet of the device is connected.
  • the technical effects achieved by the combination of UV treatment + electric field dust removal and purification of VOCs gas are as follows:
  • the inventors of the present application have discovered that the products of the gas containing VOCs after UV irradiation are not only CO 2 and H 2 O, but also large-molecular-weight nano-scale solid particles.
  • the inventors of the present application have confirmed through a large amount of experimental data:
  • the content of PM2.5 in the product after UV treatment of VOCs is more than that before UV irradiation, and the nano-particles in the UV treatment product are greatly increased.
  • the PN value of solid particles with a particle size of 23nm has increased by more than 1 times. Therefore, if the UV treatment is Direct discharge of the latter products will cause secondary pollution. Therefore, the removal of nano-solid particles needs to be considered in the UV treatment of gas containing VOCs.
  • the prior art has not found any relevant research on removing the nanoparticles in the product after UV irradiation, especially the particles below 50nm, especially the 23nm particles.
  • the inventors of the present application found that the electric field dust removal system they invented can effectively remove nanoparticles in the product after UV irradiation treatment, especially particles below 50nm, especially 23nm particles. Among them, the removal efficiency of 23nm particles reaches more than 99.99%, effectively avoiding secondary pollution.
  • the adsorption purification technology has the following functions:
  • UV light cannot completely process VOCs in the gas into CO 2 and H 2 O, will produce intermediate products, and cannot degrade all VOCs components.
  • the products of H 2 O and UV light such as O 3, OH -, and the intermediate product is not enough time to degradation and agglomeration VOCs are adsorbed component is adsorbed on the adsorbent material in the pores of the intermediate product and not enough time to UV degradation of the VOCs component O 3, OH - and other strong oxidants It further decomposes into CO 2 and H 2 O, desorbs from the pores of the adsorbent material, and assists the UV light treatment of VOCs. At the same time, it realizes online desorption to avoid adsorbent failure, ensure that the adsorbent can be reused, and increase VOCs. Processing efficiency.
  • VOCs released In terms of economy, the amount of VOCs released is not constant in actual application operations. Take painting as an example.
  • the concentration of VOCs released during the painting process fluctuates.
  • the concentration of VOCs is high, UV light cannot completely degrade VOCs, and the remaining VOCs (VOCs that have not been degraded by UV during the ultraviolet purification stage) are adsorbed and stored in the adsorption material, and are aggregated and concentrated, and are further oxidized and decomposed again under the action of strong oxidants such as O 3 , OH - and other products of UV light; when VOCs
  • the concentration is very low, the strong oxidizing ion hydroxyl radical (*OH) produced by the ultraviolet device enters the adsorption device to further catalyze the VOCs stored in the adsorption material into CO 2 and H 2 O. This improves the efficiency of VOCs gas treatment, saves energy consumption, and can also realize the miniaturization of VOCs gas treatment equipment.
  • the adsorption material can absorb the ozone produced by photolysis.
  • the adsorbed ozone oxidizes the VOCs accumulated in the adsorption material, so that O 3 can be fully utilized, and the secondary pollution caused by ozone can be avoided.
  • the combination of ultraviolet purification and adsorption purification improves the efficiency of UV purification of VOCs gas, saves energy consumption, and makes the VOCs gas treatment device miniaturized.
  • the ultraviolet device includes at least one ultraviolet lamp.
  • the UV light provided by the ultraviolet lamp is single-peak ultraviolet light or double-peak ultraviolet light.
  • the main peak of the single peak ultraviolet light provided by the ultraviolet lamp is 253.7 nm or 185 nm.
  • the main peaks of the double-peak ultraviolet light provided by the ultraviolet lamp are 253.7 nm and 185 nm, respectively.
  • the adsorption device is provided with an adsorption material
  • the adsorption material includes but not limited to activated carbon, molecular sieve, and also includes other adsorbable VOCs, VOCs in the photolysis process, ozone oxidation process, UV light the product and any intermediate product at least one substance adsorbent material excitation oxide generated during, for example, photolysis products adsorbing material 3 O VOCs.
  • the adsorption material includes at least one of hydrophilic engineered activated carbon and hydrophobic engineered molecular sieve.
  • a method for processing VOCs gas which includes the following steps:
  • the gas is subjected to UV treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particulate matter in the product after UV treatment of VOCs.
  • the VOCs gas treatment method further includes subjecting the product after UV treatment of VOCs to adsorption treatment, and then performing electric field dust removal treatment.
  • the adsorbent for the adsorption treatment is activated carbon and/or molecular sieve.
  • At least one ultraviolet lamp is used during the UV irradiation treatment.
  • the UV light provided by the ultraviolet lamp is single-wave peak ultraviolet light or double-wave peak ultraviolet light.
  • the main peak of the single peak ultraviolet light provided by the ultraviolet lamp is 253.7 nm or 185 nm.
  • the main peaks of the dual peak ultraviolet light provided by the ultraviolet lamp are 253.7 nm and 185 nm, respectively.
  • the product after UV treatment of VOCs contains nanoparticles
  • the removal of the particles in the product after UV treatment of VOCs includes removing the nanoparticles in the product after UV treatment of VOCs.
  • the product after UV treatment of VOCs contains particulate matter less than 50nm, and the removal of particulate matter in the product after UV treatment of VOCs includes the removal of particulate matter less than 50nm in the product after UV treatment of VOCs .
  • the product after UV treatment of VOCs contains 15-35 nm particles, and the removal of particles in the product after UV treatment of VOCs includes 15-35 nanometers in the product after UV treatment of VOCs. 35-nanometer particles.
  • the product after UV treatment of VOCs contains 23nm particulate matter
  • the removal of the particulate matter in the product after UV treatment of VOCs includes the removal of 23nm particulate matter in the product after UV treatment of VOCs.
  • the removal rate of 23nm particles in the product after UV treatment of VOCs is ⁇ 93%.
  • the removal rate of 23nm particles in the product after UV treatment of VOCs is ⁇ 95%.
  • the removal rate of 23nm particles in the product after UV treatment of VOCs is ⁇ 99.99%.
  • the electric field cathode of the electric field device includes a plurality of cathode wires.
  • the diameter of the cathode wire can be 0.1mm-20mm, and the size parameter can be adjusted according to the application situation and dust accumulation requirements. In an embodiment of the present invention, the diameter of the cathode wire is not greater than 3 mm.
  • the cathode wire uses a metal wire or an alloy wire that is easy to discharge, is temperature-resistant, can support its own weight, and is electrochemically stable.
  • the material of the cathode wire is titanium. The specific shape of the cathode wire is adjusted according to the shape of the electric field anode.
  • the cathode wire For example, if the dust accumulation surface of the electric field anode is flat, the cross section of the cathode wire is circular; if the dust accumulation surface of the electric field anode is an arc surface, the cathode wire needs to be designed as Polyhedral. The length of the cathode wire is adjusted according to the electric field anode.
  • the electric field cathode includes a plurality of cathode rods.
  • the diameter of the cathode rod is not greater than 3 mm.
  • the cathode rod uses a metal rod or alloy rod that is easy to discharge.
  • the shape of the cathode rod can be needle-like, polygonal, burr-like, threaded rod-like or column-like. The shape of the cathode rod can be adjusted according to the shape of the electric field anode.
  • the cross section of the cathode rod needs to be designed to be circular; if the dust accumulation surface of the electric field anode is an arc surface, the cathode The rod needs to be designed in a multi-faceted shape.
  • the electric field cathode is penetrated in the electric field anode.
  • the electric field anode includes one or more hollow anode tubes arranged in parallel. When there are multiple hollow anode tubes, all the hollow anode tubes constitute a honeycomb electric field anode.
  • the cross section of the hollow anode tube may be circular or polygonal. If the cross section of the hollow anode tube is circular, a uniform electric field can be formed between the electric field anode and the electric field cathode, and the inner wall of the hollow anode tube is not easy to accumulate dust. If the hollow anode tube has a triangular cross section, 3 dust accumulation surfaces and 3 remote dust holding angles can be formed on the inner wall of the hollow anode tube.
  • the hollow anode tube with this structure has the highest dust holding rate. If the cross section of the hollow anode tube is quadrilateral, 4 dust accumulation surfaces and 4 dust holding angles can be obtained, but the assembly structure is unstable. If the cross section of the hollow anode tube is hexagonal, 6 dust accumulation surfaces and 6 dust retention angles can be formed, and the dust accumulation surface and dust retention rate are balanced. If the cross section of the hollow anode tube is more polygonal, more dust accumulation edges can be obtained, but the dust holding rate is lost. In an embodiment of the present invention, the diameter of the tube inscribed circle of the hollow anode tube ranges from 5 mm to 400 mm.
  • the electric field cathode is installed on the cathode support plate, and the cathode support plate and the electric field anode are connected by an insulating mechanism.
  • the insulation mechanism is used to achieve insulation between the cathode support plate and the electric field anode.
  • the electric field anode includes a first anode part and a second anode part, that is, the first anode part is close to the inlet of the electric field device, and the second anode part is close to the outlet of the electric field device.
  • the cathode support plate and the insulation mechanism are between the first anode part and the second anode part, that is, the insulation mechanism is installed in the middle of the ionization electric field or the middle of the electric field cathode, which can support the electric field cathode and play a good role in the electric field cathode.
  • the electric field cathode and the electric field anode maintain a set distance.
  • the supporting point of the electric field cathode is at the end of the electric field cathode, and it is difficult to maintain the distance between the electric field cathode and the electric field anode.
  • the insulation mechanism is arranged outside the electric field flow channel to prevent or reduce dust in the gas from gathering on the insulation mechanism, causing the insulation mechanism to breakdown or conduct electricity.
  • the insulation mechanism adopts a high-voltage resistant ceramic insulator to insulate the electric field cathode and the electric field anode.
  • the electric field anode is also called a kind of housing.
  • the first anode part of the electric field anode is located before the cathode support plate and the insulating mechanism in the gas flow direction.
  • the first anode part can remove water in the gas, preventing water from entering the insulating mechanism and causing insulation
  • the mechanism is short-circuited and sparked.
  • the first anode part can remove a considerable part of the dust in the gas.
  • the insulating mechanism includes insulating ceramic pillars.
  • the design of the first anode part is mainly to protect the insulating ceramic pillars from being polluted by the particles in the gas. Once the insulating ceramic pillars are polluted by the gas, the electric field anode and the electric field cathode will be connected, which will invalidate the dust accumulation function of the electric field anode.
  • the design of an anode part can effectively reduce the pollution of the insulating ceramic pillar and increase the use time of the product.
  • the first anode part and the electric field cathode When the gas flows through the electric field flow channel, the first anode part and the electric field cathode first contact the polluting gas, and then the insulating mechanism contacts the gas to achieve the purpose of first removing dust and then passing through the insulating mechanism, reducing pollution to the insulating mechanism and extending Clean maintenance cycle.
  • the length of the first anode part is long enough to remove some dust, reduce dust accumulated on the insulation mechanism and the cathode support plate, and reduce electric breakdown caused by the dust.
  • the length of the first anode portion occupies 1/10 to 1/4, 1/4 to 1/3, 1/3 to 1/2, 1/2 to 2/3 of the total length of the electric field anode. 2/3 to 3/4, or 3/4 to 9/10.
  • the second anode portion of the electric field anode is located behind the cathode support plate and the insulating mechanism in the gas flow direction.
  • the second anode part includes a dust accumulation section and a reserved dust accumulation section.
  • the dust accumulation section uses static electricity to adsorb particulate matter in the gas.
  • the dust accumulation section is to increase the dust accumulation area and prolong the use time of the electric field device.
  • the reserved dust section can provide failure protection for the dust section.
  • the dust accumulation section is reserved to further increase the dust accumulation area and improve the dust removal effect under the premise of meeting the design dust removal requirements.
  • the dust accumulation section is reserved to supplement the dust accumulation in the front section.
  • the first anode part and the second anode part may use different power sources.
  • the insulating mechanism is arranged outside the electric field flow channel between the electric field cathode and the electric field anode. Therefore, the insulation mechanism is suspended outside the electric field anode.
  • the insulating mechanism may be made of non-conductor temperature-resistant materials, such as ceramics, glass, and the like.
  • the material insulation that is completely airtight and air-free requires an insulation isolation thickness of> 0.3 mm/kv; and air insulation requires> 1.4 mm/kv.
  • the insulation distance can be set at more than 1.4 times the distance between the electric field cathode and the electric field anode.
  • the insulating mechanism uses ceramics, and the surface is glazed; adhesives or organic materials cannot be used to fill the connection, and the temperature resistance is greater than 350 degrees Celsius.
  • the insulation mechanism includes an insulation part and a heat insulation part.
  • the material of the insulating part is ceramic material or glass material.
  • the insulating part may be an umbrella-shaped string of ceramic pillars or glass pillars with glaze on the inside and outside of the umbrella.
  • the distance between the outer edge of the umbrella string ceramic column or the glass column and the electric field anode is greater than or equal to 1.4 times the electric field distance, that is, greater than or equal to 1.4 times the electrode spacing.
  • the sum of the pitches of umbrella protrusions of the umbrella string ceramic columns or glass columns is greater than or equal to 1.4 times the insulation pitch of the umbrella string ceramic columns.
  • the total inner depth of the umbrella side of the umbrella string ceramic column or the glass column is greater than or equal to 1.4 times the insulation distance of the umbrella string ceramic column.
  • the insulating part can also be a columnar string of ceramic columns or glass columns with glaze on the inside and outside of the columns. In an embodiment of the present invention, the insulating portion may also be tower-shaped.
  • a heating rod is arranged in the insulating part, and when the temperature around the insulating part approaches the dew point, the heating rod is activated and heated. Due to the temperature difference between the inside and outside of the insulating part during use, condensation is likely to occur on the inside and outside of the insulating part.
  • the outer surface of the insulating part may spontaneously or be heated by gas to generate high temperature, and necessary isolation protection is required to prevent burns.
  • the insulation part includes a protective enclosure located outside the insulation part.
  • the end of the insulating part that needs condensation location also needs to be insulated to prevent the environment and the heat dissipation high temperature heating condensation component.
  • the lead wires of the power supply of the electric field device are connected through the wall using umbrella-shaped string ceramic pillars or glass pillars, using elastic contacts to connect the cathode support plate in the wall, and plugging and unplugging the sealed insulating protective wiring cap outside the wall.
  • the insulation distance between the lead wire and the wall conductor and the wall is greater than the ceramic insulation distance of the umbrella string ceramic column or glass column.
  • the high voltage part removes the lead wire and is directly installed on the end to ensure safety.
  • the overall external insulation of the high voltage module is protected by ip68, and the medium is used for heat exchange and heat dissipation.
  • the electric field device includes a first electric field stage, and the first electric field stage includes a plurality of first electric field generating units, and there may be one or more first electric field generating units.
  • the first electric field generating unit is also called the first dust collecting unit.
  • the first dust collecting unit includes the above-mentioned electric field anode and the electric field cathode, and there are one or more first dust collecting units.
  • the dust collection efficiency of the electric field device can be effectively improved.
  • each electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • each first electric field level is connected in series.
  • the electric field device further includes a plurality of connecting shells, and the series-connected first electric field stage is connected by the connecting shell; the distance between the first electric field stages of two adjacent stages is more than 1.4 times of the pole pitch.
  • the electric field anode and the electric field cathode are respectively electrically connected to the two electrodes of the power supply.
  • the voltage applied to the electric field anode and the electric field cathode needs to select an appropriate voltage level.
  • the specific voltage level selected depends on the volume, temperature resistance, and dust holding rate of the electric field device.
  • the voltage is from 1kv to 50kv; first consider the temperature resistance conditions in the design, the parameters of the pole spacing and temperature: 1MM ⁇ 30 degrees, the dust area is greater than 0.1 square / thousand cubic meters / hour, and the electric field length is greater than 5 of the inscribed circle of a single tube
  • the air flow velocity of the control electric field is less than 9 m/s.
  • the electric field anode is composed of a first hollow anode tube and has a honeycomb shape.
  • the shape of the first hollow anode tube port may be circular or polygonal.
  • the inscribed circle of the first hollow anode tube ranges from 5-400mm, and the corresponding voltage is between 0.1-120kv, and the corresponding current of the first hollow anode tube is between 0.1-30A;
  • the tangent circle corresponds to different corona voltages, about 1KV/1MM.
  • the inventor of the present invention has discovered through research that the disadvantages of poor removal efficiency and high energy consumption of existing electric field devices are caused by electric field coupling.
  • the present invention can significantly reduce the size (namely volume) of the electric field device by reducing the number of electric field couplings.
  • the size of the ionization dust removal device provided by the present invention is about one-fifth of the size of the existing ionization dust removal device.
  • the gas flow rate in the existing ionization dust removal device is set to about 1m/s, and the present invention can still obtain a higher gas flow rate when the gas flow rate is increased to 6m/s. Particle removal rate.
  • the size of the electric field device can be reduced.
  • the present invention can significantly improve the particle removal efficiency. For example, when the gas flow rate is about 1m/s, the prior art electric field device can remove about 70% of the particulate matter in the engine exhaust, but the present invention can remove about 99% of the particulate matter, even when the gas flow rate is 6m/s.
  • an asymmetric structure is adopted between the electric field cathode and the electric field anode.
  • polar particles are subjected to a force of the same magnitude but opposite in direction, and the polar particles reciprocate in the electric field; in an asymmetric electric field, the polar particles are subjected to two different forces, and the polar particles act towards Moving in the direction of greater force can reduce coupling.
  • a VOCs gas treatment device which includes: an inlet, an outlet, and a flow channel between the inlet and the outlet; and also includes an ultraviolet device, an electric field device, the ultraviolet device, the electric field device from The inlet to the outlet are arranged along the flow channel in sequence;
  • the electric field device includes: an inlet of an electric field device, an outlet of an electric field device, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode are used to generate an ionization dust removal electric field;
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is 1.667:1 to 1680:1.
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is 6.67:1 to 56.67:1.
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is such that the coupling times of the ionization dust removal electric field are ⁇ 3.
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode, the distance between the electric field anode and the electric field cathode, the length of the electric field anode, and the The length of the electric field cathode makes the coupling times of the ionization dust removal electric field ⁇ 3.
  • a method for processing VOCs gas which includes the following steps:
  • VOCs gas is subjected to UV treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particles in the product after UV treatment of VOCs;
  • the electric field dust removal treatment further includes a method for reducing the coupling of the dust removal electric field, and the method for reducing the coupling of the dust removal electric field includes the following steps: including selecting the ratio of the dust collecting area of the electric field anode to the discharge area of the electric field cathode to make the electric field coupling Times ⁇ 3.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collection area of the electric field anode to the discharge area of the electric field cathode so that the number of electric field couplings is ⁇ 3.
  • the ratio of the dust collecting area of the electric field anode to the discharge area of the electric field cathode may be: 1.667:1 to 1680:1; 3.334:1 to 13.34:1; 6.67:1-56.67:1; 13.34: 1-28.33:1.
  • This embodiment selects the dust collecting area of the electric field anode with a relatively large area and the discharge area of the relatively small electric field cathode.
  • the specific selection of the above area ratio can reduce the discharge area of the electric field cathode, reduce the suction force, and expand the dust collecting area of the electric field anode.
  • the dust collection area is the inner surface area of the hollow regular hexagon tube, and the dust collection area is also called the dust accumulation area.
  • the discharge area refers to the area of the working surface of the electric field cathode.
  • the electric field cathode is rod-shaped, the discharge area is the rod-shaped outer surface area.
  • a VOCs gas treatment device which includes: an inlet, an outlet, and a flow channel between the inlet and the outlet; and also includes an ultraviolet device, an electric field device, the ultraviolet device, the electric field device from The inlet to the outlet are arranged along the flow channel in sequence; the electric field device includes: an inlet of an electric field device, an outlet of an electric field device, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode are used to generate an ionization dust removal electric field; The length of the electric field anode is 10-180mm.
  • the length of the electric field anode is 60-180 mm.
  • the length of the anode of the electric field is such that the coupling times of the ionization dust removal electric field are ⁇ 3.
  • a method for processing VOCs gas which includes the following steps:
  • the gas is subjected to UV treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particles in the product after UV treatment of VOCs;
  • the electric field dust removal treatment further includes a method for reducing the coupling of the dust removal electric field.
  • the method for reducing the coupling of the dust removal electric field includes the following steps: including selecting the length of the electric field anode so that the number of electric field couplings is less than or equal to 3.
  • it includes selecting the length of the electric field anode to be 10-180 mm.
  • it includes selecting the length of the electric field anode to be 60-180 mm.
  • a VOCs gas processing device including:
  • It also includes an ultraviolet device and an electric field device, the ultraviolet device and the electric field device are sequentially arranged along the flow channel from the inlet to the outlet;
  • the electric field device includes: an entrance of the electric field device, an exit of the electric field device, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode are used to generate an ionization dust removal electric field; the length of the electric field cathode is 30-180 mm.
  • the length of the electric field cathode is 54-176 mm.
  • the length of the anode of the electric field is such that the coupling times of the ionization dust removal electric field are ⁇ 3.
  • a method for processing VOCs gas which includes the following steps:
  • the gas is subjected to UV treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particles in the product after UV treatment of VOCs;
  • the electric field dust removal treatment further includes a method for reducing the coupling of the dust removal electric field, and the method for reducing the coupling of the dust removal electric field includes the following steps:
  • it includes selecting the electric field cathode length to be 30-180 mm.
  • it includes selecting the length of the electric field cathode to be 54-176 mm.
  • a VOCs gas treatment device which includes: an inlet, an outlet, and a flow channel between the inlet and the outlet; and also includes an ultraviolet device, an electric field device, the ultraviolet device, the electric field device from The inlet to the outlet are arranged along the flow channel in sequence; the electric field device includes: an inlet of an electric field device, an outlet of an electric field device, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode are used to generate an ionization dust removal electric field; The distance between the electric field anode and the electric field cathode is less than 150 mm.
  • the distance between the electric field anode and the electric field cathode is 2.5-139.9 mm.
  • the distance between the electric field anode and the electric field cathode is 5-100 mm.
  • the distance between the electric field anode and the electric field cathode is such that the coupling times of the ionization dust removal electric field are ⁇ 3.
  • a method for processing VOCs gas which includes the following steps:
  • the gas is subjected to UV treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particles in the product after UV treatment of VOCs;
  • the electric field dust removal treatment further includes a method for reducing the coupling of the dust removal electric field, and the method for reducing the coupling of the dust removal electric field includes the following steps:
  • It includes selecting the distance between the electric field anode and the electric field cathode so that the number of electric field couplings is less than or equal to 3.
  • the distance between the electric field anode and the electric field cathode is selected to be 2.5-139.9 mm.
  • the distance between the electric field anode and the electric field cathode is selected to be 5-100 mm.
  • the electric field dust removal processing method provided by the present invention further includes: a method for reducing electric field coupling of gas dust removal, including the following steps:
  • the electric field anode or/and the electric field cathode are selected.
  • the size of the electric field anode or/and the electric field cathode is selected such that the number of electric field couplings is ⁇ 3.
  • the ratio of the dust collection area of the electric field anode to the discharge area of the electric field cathode is selected.
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is selected to be 1.667:1 to 1680:1.
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode is selected to be 6.67-56.67:1.
  • the diameter of the electric field cathode is 1-3 mm, and the distance between the electric field anode and the electric field cathode is 2.5-139.9 mm; the dust accumulation area of the electric field anode and the electric field cathode The ratio of the discharge area is 1.667:1 to 1680:1.
  • the distance between the electric field anode and the electric field cathode is selected to be less than 150 mm.
  • the distance between the electric field anode and the electric field cathode is selected to be 2.5-139.9 mm. More preferably, the distance between the electric field anode and the electric field cathode is selected to be 5.0-100 mm.
  • the length of the electric field anode is selected to be 10-180 mm. More preferably, the length of the electric field anode is selected to be 60-180 mm.
  • the length of the electric field cathode is selected to be 30-180 mm. More preferably, the length of the electric field cathode is selected to be 54-176 mm.
  • the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode, the distance between the electric field anode and the electric field cathode, the length of the electric field anode, and the discharge area of the electric field cathode are selected.
  • the length of the electric field cathode makes the coupling times of the ionization dust removal electric field ⁇ 3.
  • the length of the electric field anode may be 10-180mm, 10-20mm, 20-30mm, 60-180mm, 30-40mm, 40-50mm, 50-60mm, 60-70mm, 70-80mm, 80mm. -90mm, 90-100mm, 100-110mm, 110-120mm, 120-130mm, 130-140mm, 140-150mm, 150-160mm, 160-170mm, 170-180mm, 60mm, 180mm, 10mm or 30mm.
  • the length of the electric field anode refers to the minimum length from one end to the other end of the working surface of the electric field anode. Choosing this length of the electric field anode can effectively reduce the electric field coupling.
  • the length of the electric field anode may be 10-90mm, 15-20mm, 20-25mm, 25-30mm, 30-35mm, 35-40mm, 40-45mm, 45-50mm, 50-55mm, 55mm. -60mm, 60-65mm, 65-70mm, 70-75mm, 75-80mm, 80-85mm or 85-90mm, this length design can make the electric field anode and electric field device have high temperature resistance characteristics, and make the electric field device at high temperature Highly efficient dust collection ability under impact.
  • the length of the electric field cathode may be 30-180mm, 54-176mm, 30-40mm, 40-50mm, 50-54mm, 54-60mm, 60-70mm, 70-80mm, 80-90mm, 90mm. -100mm, 100-110mm, 110-120mm, 120-130mm, 130-140mm, 140-150mm, 150-160mm, 160-170mm, 170-176mm, 170-180mm, 54mm, 180mm, or 30mm.
  • the length of the electric field cathode refers to the minimum length from one end to the other end of the working surface of the electric field cathode. Choosing this length of the electric field cathode can effectively reduce the electric field coupling.
  • the length of the electric field cathode may be 10-90mm, 15-20mm, 20-25mm, 25-30mm, 30-35mm, 35-40mm, 40-45mm, 45-50mm, 50-55mm, 55mm. -60mm, 60-65mm, 65-70mm, 70-75mm, 75-80mm, 80-85mm or 85-90mm.
  • the design of this length can make the electric field cathode and electric field device have high temperature resistance characteristics, and make the electric field device at high temperature Highly efficient dust collection ability under impact.
  • the distance between the electric field anode and the electric field cathode may be 5-30mm, 2.5-139.9mm, 9.9-139.9mm, 2.5-9.9mm, 9.9-20mm, 20-30mm, 30-40mm, 40mm. -50mm, 50-60mm, 60-70mm, 70-80mm, 80-90mm, 90-100mm, 100-110mm, 110-120mm, 120-130mm, 130-139.9mm, 9.9mm, 139.9mm, or 2.5mm.
  • the distance between the anode of the electric field and the cathode of the electric field is also referred to as the electrode pitch.
  • the pole distance specifically refers to the minimum vertical distance between the working surfaces of the electric field anode and the electric field cathode. The selection of this pole spacing can effectively reduce the electric field coupling and make the electric field device have high temperature resistance characteristics.
  • the diameter of the electric field cathode is 1-3 mm, and the distance between the electric field anode and the electric field cathode is 2.5-139.9 mm; the dust accumulation area of the electric field anode and the electric field cathode The ratio of the discharge area is 1.667:1 to 1680:1.
  • a VOCs gas treatment device which includes: an inlet, an outlet, and a flow channel between the inlet and the outlet; and also includes an ultraviolet device, an electric field device, and the ultraviolet device and the electric field device from The inlet to the outlet are arranged along the flow channel in sequence;
  • the electric field device includes: an inlet of an electric field device, an outlet of an electric field device, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode are used to generate an ionization dust removal electric field;
  • the electric field device further includes an auxiliary electric field unit for generating an auxiliary electric field that is not parallel to the ionization dust removal electric field.
  • a VOCs gas treatment device which includes: an inlet, an outlet, and a flow channel between the inlet and the outlet; and also includes an ultraviolet device, an electric field device, and the ultraviolet device and the electric field device from The inlet to the outlet are arranged along the flow channel in sequence;
  • the electric field device includes: an inlet of an electric field device, an outlet of an electric field device, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode are used to generate an ionization dust removal electric field;
  • the electric field device further includes an auxiliary electric field unit, the ionization dust removal electric field includes a flow channel, and the auxiliary electric field unit is used to generate an auxiliary electric field that is not perpendicular to the flow channel.
  • the auxiliary electric field unit includes a first electrode, and the first electrode of the auxiliary electric field unit is disposed at or near the entrance of the ionization dust removal electric field.
  • the first electrode is a cathode.
  • the first electrode of the auxiliary electric field unit is an extension of the electric field cathode.
  • the auxiliary electric field unit includes a second electrode, and the second electrode of the auxiliary electric field unit is arranged at or near the outlet of the ionization dust removal electric field.
  • the second electrode is an anode.
  • the second electrode of the auxiliary electric field unit is an extension of the electric field anode.
  • the electrode of the auxiliary electric field and the electrode of the ionization dust removal electric field are arranged independently.
  • the electric field dust removal treatment method provided by the present invention further includes a method of providing an auxiliary electric field, including the following steps:
  • An auxiliary electric field is generated in the flow channel, and the auxiliary electric field is not perpendicular to the flow channel.
  • the auxiliary electric field ionizes the gas.
  • the auxiliary electric field is generated by the auxiliary electric field unit.
  • the ionization dust removal electric field between the electric field anode and the electric field cathode is also called the first electric field.
  • a second electric field that is not parallel to the first electric field is formed between the electric field anode and the electric field cathode.
  • the flow channel of the second electric field and the ionization dust removal electric field are not perpendicular.
  • the second electric field is also called an auxiliary electric field, which can be formed by one or two auxiliary electrodes.
  • the auxiliary electrode can be placed at the inlet or outlet of the ionization dust removal electric field, and the auxiliary electrode can have a negative potential. , Or positive potential.
  • the auxiliary electrode When the second electric field is formed by two auxiliary electrodes, one of the auxiliary electrodes can have a negative potential, and the other auxiliary electrode can have a positive potential; one auxiliary electrode can be placed at the entrance of the ionization electric field, and the other auxiliary electrode can be placed at the entrance of the ionization electric field.
  • the auxiliary electrode may be a part of the electric field cathode or the electric field anode, that is, the auxiliary electrode may be an extension of the electric field cathode or the electric field anode, and the length of the electric field cathode and the electric field anode are different.
  • the auxiliary electrode may also be a separate electrode, that is, the auxiliary electrode may not be a part of the electric field cathode or the electric field anode.
  • the voltage of the second electric field is different from the voltage of the first electric field and can be controlled separately according to the working conditions.
  • the auxiliary electrode includes the first electrode and/or the second electrode in the auxiliary electric field unit.
  • FIG. 1 shows a schematic diagram of the structure of a gas dust removal system in an embodiment.
  • the gas dust removal system 101 includes an electric field device inlet 1011, an electric field device 1014, and an insulation mechanism 1015.
  • the electric field device 1014 includes an electric field anode 10141 and an electric field cathode 10142 arranged in the electric field anode 10141.
  • An asymmetric electrostatic field is formed between the electric field anode 10141 and the electric field cathode 10142.
  • the inside of the electric field anode 10141 is composed of a honeycomb-shaped and hollow anode tube bundle group, and the shape of the port of the anode tube bundle is a hexagon.
  • the electric field cathode 10142 includes a plurality of electrode rods, which pierce each anode tube bundle in the anode tube bundle one by one, wherein the shape of the electrode rod is needle-like, polygonal, burr-like, and threaded rod. Shaped or columnar.
  • the ratio of the dust collection area of the electric field anode 10141 to the discharge area of the electric field cathode 10142 is 1680:1, the distance between the electric field anode 10141 and the electric field cathode 10142 is 9.9 mm, the length of the electric field anode 10141 is 60 mm, and the length of the electric field cathode 10142 It is 54mm.
  • the outlet end of the electric field cathode 10142 is lower than the outlet end of the electric field anode 10141, and the inlet end of the electric field cathode 10142 is flush with the inlet end of the electric field anode 10141.
  • There is an angle ⁇ between the exit end of 10141 and the near exit end of the electric field cathode 10142, and ⁇ 90°, so that an accelerating electric field is formed inside the electric field device 1014, which can collect more materials to be processed.
  • the insulation mechanism 1015 includes an insulation part and a heat insulation part.
  • the insulating part is made of ceramic material or glass material.
  • the insulating part is an umbrella-shaped string of ceramic pillars or glass pillars, or a pillar-shaped string of ceramic pillars or glass pillars, and the inside and outside of the umbrella or the pillars are covered with glaze.
  • the electric field cathode 10142 is mounted on the cathode support plate 10143, and the cathode support plate 10143 and the electric field anode 10141 are connected through an insulating mechanism 1015.
  • the insulation mechanism 1015 is used to achieve insulation between the cathode support plate 10143 and the electric field anode 10141.
  • the electric field anode 10141 includes a first anode portion 101412 and a second anode portion 101411, that is, the first anode portion 101412 is close to the entrance of the electric field device, and the second anode portion 101411 is close to the outlet of the electric field device.
  • the cathode support plate and the insulation mechanism are between the first anode part 101412 and the second anode part 101411, that is, the insulation mechanism 1015 is installed in the middle of the ionization electric field or the middle of the electric field cathode 10142, which can support the electric field cathode 10142 well, and
  • the electric field cathode 10142 is fixed relative to the electric field anode 10141, so that the electric field cathode 10142 and the electric field anode 10141 maintain a set distance.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 6.67:1, the distance L3 between the electric field anode 4051 and the electric field cathode 4052 is 9.9 mm, and the electric field anode 4051
  • the length L1 is 60mm
  • the length L2 of the electric field cathode 4052 is 54mm
  • the electric field anode 4051 includes a fluid channel
  • the fluid channel includes an inlet end and an outlet end
  • the electric field cathode 4052 is placed in the fluid channel
  • the electric field cathode 4052 extends along the direction of the fluid channel of the dust collecting electrode
  • the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052
  • the outlet end of the electric field anode 4051 and the near outlet end of the electric field cathode 4052 have an angle
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • the electric field stages of the plurality of electric field stages are connected in series, and the series electric field stages are connected by a connecting shell.
  • the distance between the electric field stages of two adjacent stages is greater than 1.4 times of the pole spacing.
  • the electric field has two levels, namely the first electric field and the second electric field, and the first electric field and the second electric field are connected in series through the connecting shell.
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 1680:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 139.9 mm, and the electric field anode 4051 length
  • the electric field cathode 4052 has a length of 180 mm.
  • the electric field anode 4051 includes a fluid channel.
  • the fluid channel includes an inlet end and an outlet end.
  • the electric field cathode 4052 is placed in the fluid channel.
  • the direction of the dust electrode fluid channel extends, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then the electric field anode 4051 and the electric field cathode Under the action of 4052, more materials to be processed can be collected, and the number of electric field couplings ⁇ 3, which can reduce the coupling consumption of the gas to be processed by the electric field, and save electric field electric energy by 20-40%.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collecting area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 1.667:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 2.4 mm, and the electric field anode 4051 length
  • the electric field cathode 4052 has a length of 30 mm.
  • the electric field anode 4051 includes a fluid channel.
  • the fluid channel includes an inlet end and an outlet end.
  • the electric field cathode 4052 is placed in the fluid channel.
  • the direction of the dust electrode fluid channel extends, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then the electric field anode 4051 and the electric field cathode Under the action of 4052, more materials to be processed can be collected, and the number of electric field couplings ⁇ 3 can be realized, which can reduce the coupling consumption of the gas to be processed by the electric field, and save the electric energy of the electric field by 10-30%.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 in this embodiment is a hollow regular hexagonal tube, the electric field cathode 4052 is rod-shaped, and the electric field cathode 4052 penetrates the electric field anode 4051.
  • the dust collection of the electric field anode 4051 The ratio of the area to the discharge area of the electric field cathode 4052 is 6.67:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 9.9 mm, the electric field anode 4051 has a length of 60 mm, and the electric field cathode 4052 has a length of 54 mm.
  • the electric field cathode 4052 is placed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel of the dust collector, and the inlet end of the electric field anode 4051 is connected to the fluid channel.
  • the typical particle pm 0.23 dust collection efficiency is 99.99%, and the typical 23nm particle removal efficiency is 99.99%.
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • the electric field stages of the plurality of electric field stages are connected in series, and the series electric field stages are connected by a connecting shell.
  • the distance between the electric field stages of two adjacent stages is greater than 1.4 times of the pole spacing.
  • the electric field has two levels, namely, the first electric field 4053 and the second electric field 4054.
  • the first electric field 4053 and the second electric field 4054 are connected in series through the connecting housing 4055.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is 1680. :1.
  • the distance between the electric field anode 4051 and the electric field cathode 4052 is 139.9 mm
  • the electric field anode 4051 has a length of 180 mm
  • the electric field cathode 4052 has a length of 180 mm.
  • the electric field anode 4051 includes a fluid channel, and the fluid channel includes an inlet end and At the outlet end, the electric field cathode 4052 is placed in the fluid channel, the electric field cathode 4052 extends along the direction of the fluid channel of the dust collector, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, and the electric field anode 4052
  • the outlet end of the 4051 is flush with the near outlet end of the electric field cathode 4052, and under the action of the electric field anode 4051 and the electric field cathode 4052, more materials to be processed can be collected, which ensures higher dust collection efficiency of the electric field device.
  • the typical particle PM 0.23 dust collection efficiency is 99.99%, and the typical 23nm particle removal efficiency is 99.99%.
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is 1.667 :1.
  • the distance between the electric field anode 4051 and the electric field cathode 4052 is 2.4 mm.
  • the electric field anode 4051 has a length of 30 mm and the electric field cathode 4052 has a length of 30 mm.
  • the electric field anode 4051 includes a fluid channel.
  • the fluid channel includes an inlet end and an outlet end.
  • the electric field cathode 4052 is placed in the fluid channel.
  • the cathode 4052 extends in the direction of the fluid channel of the dust collector.
  • the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, and the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052.
  • the typical particle pm 0.23 dust collection efficiency is 99.99%, and the typical 23nm particle removal efficiency is 99.99% .
  • the electric field anode 4051 and the electric field cathode 4052 constitute a dust collection unit, and there are multiple dust collection units, so that the use of multiple dust collection units effectively improves the dust collection efficiency of the electric field device.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 is in the shape of a hollow regular hexagon
  • the electric field cathode 4052 is in the shape of a rod
  • the electric field cathode 4052 is inserted in the electric field anode 4051.
  • the electric field anode 4051 has a length of 5 cm and the electric field cathode 4052 has a length of 5 cm.
  • the 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is placed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel of the dust collector, and the inlet end of the electric field anode 4051 It is flush with the near inlet end of the electric field cathode 4052, and the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052.
  • the distance between the electric field anode 4051 and the electric field cathode 4052 is 9.9 mm.
  • An electric field temperature of 200°C corresponds to a dust collection efficiency of 99.9%; an electric field temperature of 400°C corresponds to a dust collection efficiency of 90%; an electric field temperature of 500°C corresponds to a dust collection efficiency of 50%.
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 is in the shape of a hollow regular hexagon
  • the electric field cathode 4052 is in the shape of a rod
  • the electric field cathode 4052 is inserted in the electric field anode 4051.
  • the electric field anode 4051 has a length of 9 cm
  • the electric field cathode 4052 has a length of 9 cm.
  • the 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is placed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel of the dust collector, and the inlet end of the electric field anode 4051 It is flush with the near inlet end of the electric field cathode 4052, and the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052.
  • the distance between the electric field anode 4051 and the electric field cathode 4052 is 139.9 mm.
  • An electric field temperature of 200°C corresponds to a dust collection efficiency of 99.9%; an electric field temperature of 400°C corresponds to a dust collection efficiency of 90%; an electric field temperature of 500°C corresponds to a dust collection efficiency of 50%.
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each storage electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 is in the shape of a hollow regular hexagon
  • the electric field cathode 4052 is in the shape of a rod
  • the electric field cathode 4052 is inserted in the electric field anode 4051.
  • the electric field anode 4051 has a length of 1 cm and the electric field cathode 4052 has a length of 1 cm.
  • the 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is placed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel of the dust collector, and the inlet end of the electric field anode 4051 It is flush with the near entrance end of the electric field cathode 4052, and the exit end of the electric field anode 4051 is flush with the near exit end of the electric field cathode 4052.
  • the distance between the electric field anode 4051 and the electric field cathode 4052 is 2.4 mm.
  • An electric field temperature of 200°C corresponds to a dust collection efficiency of 99.9%; an electric field temperature of 400°C corresponds to a dust collection efficiency of 90%; an electric field temperature of 500°C corresponds to a dust collection efficiency of 50%.
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each electric field anode has the same polarity
  • each electric field cathode has the same polarity.
  • the electric field stages of the plurality of electric field stages are connected in series, and the series electric field stages are connected by a connecting shell.
  • the distance between the electric field stages of two adjacent stages is greater than 1.4 times of the pole spacing.
  • the electric field has two levels, namely a first electric field and a second electric field, and the first electric field and the second electric field are connected in series through the connecting shell.
  • the above-mentioned substances to be treated are particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 in this embodiment is a hollow regular hexagonal tube, the electric field cathode 4052 is rod-shaped, and the electric field cathode 4052 penetrates the electric field anode 4051.
  • the electric field anode 4051 has a length of 3 cm.
  • 4052 has a length of 2 cm.
  • the electric field anode 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is placed in the fluid channel, and the electric field cathode 4052 runs along the fluid channel of the dust collector.
  • the distance between the anode 4051 and the electric field cathode 4052 is 20 mm. Under the action of the electric field anode 4051 and the electric field cathode 4052, it can withstand high temperature shocks and collect more materials to be processed to ensure the collection of the electric field generating unit. Dust efficiency is higher.
  • An electric field temperature of 200°C corresponds to a dust collection efficiency of 99.9%; an electric field temperature of 400°C corresponds to a dust collection efficiency of 90%; an electric field temperature of 500°C corresponds to a dust collection efficiency of 50%.
  • the electric field device includes an electric field stage composed of a plurality of the above-mentioned electric field generating units, and there are multiple electric field stages to effectively improve the dust collection efficiency of the electric field device by using a plurality of dust collecting units.
  • each dust collection is extremely the same polarity, and each discharge is extremely the same polarity.
  • the electric field stages of the plurality of electric field stages are connected in series, and the series electric field stages are connected by a connecting shell.
  • the distance between the electric field stages of two adjacent stages is greater than 1.4 times of the pole spacing.
  • the electric field has two levels, namely the first electric field and the second electric field, and the first electric field and the second electric field are connected in series through the connecting shell.
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method of reducing electric field coupling includes the following steps: selecting the ratio of the dust collecting area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 27.566:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 2.3 mm, and the electric field anode 4051 length
  • the electric field cathode 4052 has a length of 4 mm.
  • the electric field anode 4051 includes a fluid channel.
  • the fluid channel includes an inlet end and an outlet end.
  • the electric field cathode 4052 is placed in the fluid channel.
  • the direction of the dust electrode fluid channel extends, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then the electric field anode 4051 and the electric field cathode Under the action of 4052, more materials to be processed can be collected to realize the number of electric field couplings ⁇ 3, which ensures that the dust removal efficiency of the electric field generating unit is higher.
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 1.108:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 2.3 mm, and the electric field anode: 051 has a length of 60mm, the electric field cathode 4052 has a length of 200mm, the electric field anode 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is placed in the fluid channel, the electric field cathode 4052 Extending in the direction of the fluid channel of the dust collector, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, and the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052. Under the action of the electric field catho
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 3065:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 249 mm, and the electric field anode 4051 length is 2000mm, the electric field cathode 4052 has a length of 180mm, the electric field anode 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is placed in the fluid channel, and the electric field cathode 4052 collects dust along the The direction of the polar fluid channel extends, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then the electric field anode 4051 and the electric field
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field generating unit in this embodiment can be applied to an electric field device. As shown in FIG. 2, it includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field.
  • the electric field anode 4051 and the electric field cathode 4052 are respectively connected to the two electrodes of the power supply.
  • the power supply is a DC power supply, and the electric field anode 4051 and the electric field cathode 4052 are electrically connected to the anode and the cathode of the DC power supply, respectively.
  • the electric field anode 4051 has a positive electric potential
  • the electric field cathode 4052 has a negative electric potential.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field anode 4051 and the electric field cathode 4052, and the discharge electric field is an electrostatic field.
  • the electric field anode 4051 has a hollow regular hexagonal tube shape
  • the electric field cathode 4052 has a rod shape
  • the electric field cathode 4052 penetrates the electric field anode 4051.
  • the method for reducing electric field coupling includes the following steps: selecting the ratio of the dust collection area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 1.338:1, the distance between the electric field anode 4051 and the electric field cathode 4052 is 5 mm, and the electric field anode 4051 length is
  • the electric field cathode 4052 has a length of 10 mm.
  • the electric field anode 4051 includes a fluid channel.
  • the fluid channel includes an inlet end and an outlet end.
  • the electric field cathode 4052 is placed in the fluid channel.
  • the direction of the polar fluid channel extends, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then the electric field anode 4051 and the electric field cathode 4052 Under the action of, more materials to be processed can be collected, and the number of electric field couplings is less than or equal to 3, which ensures that the dust removal efficiency of the electric field generating unit is higher.
  • the above-mentioned substances to be treated in this embodiment may be particulate matter in the UV purification product.
  • the electric field device in this embodiment can be applied to the purification of VOCs gas. It includes an electric field cathode 5081 and an electric field anode 5082 which are electrically connected to the cathode and anode of the DC power supply, respectively, and the auxiliary electrode 5083 is electrically connected to the anode of the DC power supply.
  • the electric field cathode 5081 has a negative potential
  • the electric field anode 5082 and the auxiliary electrode 5083 both have a positive potential.
  • the auxiliary electrode 5083 and the electric field anode 5082 are fixedly connected in this embodiment. After the electric field anode 5082 is electrically connected to the anode of the DC power supply, the auxiliary electrode 5083 is also electrically connected to the anode of the DC power supply, and the auxiliary electrode 5083 and the electric field anode 5082 have the same positive potential.
  • the auxiliary electrode 5083 in this embodiment can extend in the front-to-back direction, that is, the length direction of the auxiliary electrode 5083 can be the same as the length direction of the electric field anode 5082.
  • the electric field anode 5082 is tubular, the electric field cathode 5081 is rod-shaped, and the electric field cathode 5081 penetrates the electric field anode 5082.
  • the auxiliary electrode 5083 in this embodiment is also tubular, and the auxiliary electrode 5083 and the electric field anode 5082 constitute an anode tube 5084.
  • the front end of the anode tube 5084 is flush with the electric field cathode 5081, and the rear end of the anode tube 5084 exceeds the rear end of the electric field cathode 5081 backward.
  • the part of the anode tube 5084 that extends backward is the auxiliary electrode 5083.
  • the electric field anode 5082 and the electric field cathode 5081 have the same length, and the electric field anode 5082 and the electric field cathode 5081 are opposite in the front and rear direction; the auxiliary electrode 5083 is located behind the electric field anode 5082 and the electric field cathode 5081. In this way, an auxiliary electric field is formed between the auxiliary electrode 5083 and the electric field cathode 5081, and the auxiliary electric field applies a backward force to the negatively charged oxygen ion flow between the electric field anode 5082 and the electric field cathode 5081.
  • the negatively charged oxygen ions will combine with the substance to be treated in the process of moving to the electric field anode 5082 and backward, because the oxygen ions have a backward moving speed
  • the oxygen ions are combined with the substance to be treated, there will be no strong collision between the two, thereby avoiding large energy consumption due to the strong collision, making the oxygen ions easy to combine with the substance to be treated, and making
  • the charging efficiency of the substances to be treated in the gas is higher, and furthermore, under the action of the electric field anode 5082 and the anode tube 5084, more substances to be treated can be collected, ensuring higher dust removal efficiency of the electric field device.
  • the electric field anode 5082, the auxiliary electrode 5083, and the electric field cathode 5081 constitute a dust removal unit, and there are multiple dust removal units to effectively improve the dust removal efficiency of the electric field device by using multiple dust removal units.
  • the above-mentioned substances to be treated are particulates in the UV-purified VOCs gas product.
  • the DC power supply in this embodiment may specifically be a DC high-voltage power supply.
  • a discharge electric field is formed between the electric field cathode 5081 and the electric field anode 5082, and the discharge electric field is an electrostatic field.
  • the auxiliary electrode 5083 Without the auxiliary electrode 5083, the ions flow in the electric field between the electric field cathode 5081 and the electric field anode 5082 along the direction perpendicular to the electrodes, and flow back and forth between the two electrodes, causing the ions to be folded back and forth between the electrodes for consumption.
  • the auxiliary electrode 5083 is used to stagger the relative positions of the electrodes to form a relative imbalance between the electric field anode 5082 and the electric field cathode 5081. This imbalance will deflect the ion current in the electric field.
  • an auxiliary electrode 5083 is used to form an electric field capable of directional ion flow.
  • the electric field device in this embodiment can be applied to the purification of VOCs gas. It includes an electric field cathode and an electric field anode respectively electrically connected to the cathode and anode of the DC power supply, and the auxiliary electrode is electrically connected to the cathode of the DC power supply.
  • the auxiliary electrode and the electric field cathode both have a negative electric potential, and the electric field anode has a positive electric potential.
  • the auxiliary electrode can be fixedly connected to the electric field cathode. In this way, after the electric field cathode is electrically connected to the cathode of the DC power source, the auxiliary electrode is also electrically connected to the cathode of the DC power source. At the same time, the auxiliary electrode in this embodiment extends in the front-rear direction.
  • the electric field anode is tubular
  • the electric field cathode is rod-shaped
  • the electric field cathode penetrates the electric field anode.
  • the above-mentioned auxiliary electrode in this embodiment is also rod-shaped, and the auxiliary electrode and the electric field cathode constitute a cathode rod.
  • the front end of the cathode rod extends forward from the front end of the electric field anode, and the part of the cathode rod that exceeds the electric field anode forward is the auxiliary electrode.
  • the electric field anode and the electric field cathode have the same length, and the electric field anode and the electric field cathode are positioned opposite each other in the front and rear direction; the auxiliary electrode is located in front of the electric field anode and the electric field cathode.
  • an auxiliary electric field is formed between the auxiliary electrode and the electric field anode.
  • the auxiliary electric field applies a backward force to the negatively charged oxygen ion flow between the electric field anode and the electric field cathode, so that the negatively charged oxygen ions between the electric field anode and the electric field cathode
  • the flow has a backward movement speed.
  • the negatively charged oxygen ions will be combined with the substance to be treated during the process of moving to the electric field anode and backward, because oxygen ions have a backward moving speed
  • the oxygen ions are combined with the substance to be treated, there will be no strong collision between the two, thereby avoiding large energy consumption due to the strong collision, making the oxygen ions easy to combine with the substance to be treated, and making The charging efficiency of the substances to be treated in the gas is higher, and more substances to be treated can be collected under the action of the anode of the electric field, which ensures that the dust removal efficiency of the electric field device is higher.
  • the electric field anode, the auxiliary electrode, and the electric field cathode constitute a dust removal unit, and there are multiple dust removal units to effectively improve the dust removal efficiency of the electric field device by using multiple dust removal units.
  • the above-mentioned substances to be treated are products of UV purification of VOCs.
  • the electric field device in this embodiment can be used to purify VOCs gas by UV ultraviolet rays to remove particles in the UV purification product, and the auxiliary electrode 5083 extends in the left and right directions.
  • the length direction of the auxiliary electrode 5083 in this embodiment is different from the length direction of the electric field anode 5082 and the electric field cathode 5081.
  • the auxiliary electrode 5083 may be perpendicular to the electric field anode 5082.
  • the electric field cathode 5081 and the electric field anode 5082 are electrically connected to the cathode and anode of the DC power supply, respectively, and the auxiliary electrode 5083 is electrically connected to the anode of the DC power supply.
  • the electric field cathode 5081 has a negative potential
  • the electric field anode 5082 and the auxiliary electrode 5083 both have a positive potential.
  • the electric field cathode 5081 and the electric field anode 5082 are opposed to each other in the front and rear direction, and the auxiliary electrode 5083 is located behind the electric field anode 5082 and the electric field cathode 5081.
  • an auxiliary electric field is formed between the auxiliary electrode 5083 and the electric field cathode 5081.
  • the auxiliary electric field applies a backward force to the negatively charged oxygen ion flow between the electric field anode 5082 and the electric field cathode 5081, so that the electric field anode 5082 and the electric field cathode 5081 are
  • the stream of negatively charged oxygen ions has a backward moving speed.
  • the negatively charged oxygen ions will be combined with the substance to be treated in the process of moving to the electric field anode 5082 and backward.
  • Oxygen ions have a backward moving speed.
  • the oxygen ions are combined with the material to be treated, there will be no strong collision between the two, thus avoiding the large energy consumption caused by the strong collision, making the oxygen ions easy to interact with
  • the combination of the substances to be treated makes the charging efficiency of the substances to be treated in the gas higher. Then, under the action of the electric field anode 5082, more substances to be treated can be collected, ensuring higher dust removal efficiency of the electric field device.
  • the electric field device in this embodiment can be applied to VOCs purification treatment, and the auxiliary electrode 5083 extends in the left and right directions.
  • the length direction of the auxiliary electrode 5083 in this embodiment is different from the length direction of the electric field anode 5082 and the electric field cathode 5081.
  • the auxiliary electrode 5083 may be perpendicular to the electric field cathode 5081.
  • the electric field cathode 5081 and the electric field anode 5082 are electrically connected to the cathode and anode of the DC power supply, respectively, and the auxiliary electrode 5083 is electrically connected to the cathode of the DC power supply.
  • the electric field cathode 5081 and the auxiliary electrode 5083 both have a negative electric potential, and the electric field anode 5082 has a positive electric potential.
  • the electric field cathode 5081 and the electric field anode 5082 are opposite to each other in the front and rear direction, and the auxiliary electrode 5083 is located in front of the electric field anode 5082 and the electric field cathode 5081.
  • an auxiliary electric field is formed between the auxiliary electrode 5083 and the electric field anode 5082.
  • the auxiliary electric field applies a backward force to the negatively charged oxygen ion flow between the electric field anode 5082 and the electric field cathode 5081, so that the electric field anode 5082 and the electric field cathode 5081 are
  • the stream of negatively charged oxygen ions has a backward moving speed.
  • the negatively charged oxygen ions will be combined with the substance to be treated in the process of moving to the electric field anode 5082 and backward.
  • Oxygen ions have a backward moving speed.
  • the oxygen ions are combined with the material to be treated, there will be no strong collision between the two, thus avoiding the large energy consumption caused by the strong collision, making the oxygen ions easy to interact with
  • the combination of the substances to be treated makes the charging efficiency of the substances to be treated in the gas higher. Then, under the action of the electric field anode 5082, more substances to be treated can be collected, ensuring higher dust removal efficiency of the electric field device.
  • This embodiment provides a VOCs gas processing method, including the following steps:
  • the gas containing VOCs is subjected to UV purification treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is subjected to electric field dust removal treatment to remove particulate matter in the product after UV treatment of VOCs.
  • the electric field dust removal treatment method includes: passing dust-containing gas through an ionization dust removal electric field generated by an electric field anode and an electric field cathode to perform dust removal treatment.
  • the electric field dust removal treatment method further includes: the ratio of the dust accumulation area of the electric field anode to the discharge area of the electric field cathode, the distance between the electric field anode and the electric field cathode, and the The length of the electric field anode and the length of the electric field cathode make the coupling times of the ionization electric field ⁇ 3.
  • the electric field dust removal processing method further includes a method of providing an auxiliary electric field, including:
  • VOCs stock solution (industrial banana water)
  • UV ultraviolet lamp U-shaped tube, 150W, 185nm+254nm mixed wavelength
  • Electric field device the electric field device of embodiment 1 is adopted;
  • VOCs concentration detection instrument CO 2 concentration detection instrument, PM2.5 detection instrument, temperature and humidity detection instrument;
  • PN value detection method PN value: the number of solid particles, using the principle of light scattering, using a laser dust particle counter to detect the solid particles in the VOC gas, the gas flow rate is 2.8L/min, and 5s is a sampling period .
  • the VOCs gas processing device includes an ultraviolet device 4 and an electric field device 5 connected in sequence.
  • the ultraviolet device 4 includes an air inlet 41, an air outlet 42, and an ultraviolet lamp 43.
  • the electric field device 5 provided in Embodiment 1 is used, and the air outlet 42 of the ultraviolet device 4 is in communication with the electric field device inlet 51 of the electric field device 5.
  • the clean space enters the air humidification tank 1.
  • the humidity of the clean air is adjusted in the air humidification tank 1.
  • the VOCs stock solution is stored in the VOCs storage tank 2.
  • the clean air from the air humidification tank 1 and the VOCs storage tank 2 The VOCs stock solution inside is mixed in the mixing buffer tank 3 to control the gas flow of clean air and VOCs stock solution, and the gas flow and concentration of the gas containing VOCs (referred to as VOCs gas) after mixing are respectively controlled at 0.95m 3 /h , 320mg/m 3 .
  • the VOCs gas is transported into the ultraviolet device 4 through the air inlet 41 of the ultraviolet device 4 for UV purification treatment to obtain the product after UV treatment of VOCs, and the purified product is transported to the electric field device 5 through the air outlet 42 for electric field dust removal treatment to remove the purified product
  • the particulate matter in the electric field is finally discharged from the electric field device outlet 52 of the electric field device 5.
  • VOCs concentration content, CO 2 concentration content and PM2.5 value in the VOCs gas at the inlet 41 of the ultraviolet device and the outlet 52 of the electric field device of the electric field device 5 respectively; respectively at the inlet 41 of the ultraviolet device and the outlet 42 of the ultraviolet device ,
  • the outlet 52 of the electric field device 5 detects the PN value of solid particles of different sizes in the gas, and the specific detection particle size is 23nm, 0.3 ⁇ m, 0.5 ⁇ m, 1.0 ⁇ m, 3.0 ⁇ m, 5.0 ⁇ m, 10 ⁇ m.
  • the main test parameters are shown in Table 1.
  • VOCs with an initial flow rate of 0.95 m 3 /h and an initial concentration of 320 mg/m 3 are passed into the ultraviolet device 4 and the electric field device 5 in sequence.
  • the DC power supply parameters of the electric field device were adjusted to 9.10kV and 2.98mA, and the organic solid particles in the product after UV purification were removed.
  • the VOCs concentration at the outlet of the electric field device and the VOCs removal rate with time are shown in Figure 10, where A shows the VOCs at the outlet of the electric field device Concentration (that is, the concentration of VOCs at the outlet of the ultraviolet device), B shows the VOCs removal efficiency. It can be seen from Fig. 10 that when the concentration of VOCs is basically maintained at 320mg/m 3 within 80s of UV lamp treatment, the concentration of VOCs drops rapidly after 80s; the concentration of VOCs drops to 201mg/m 3 after treatment for 440s. The removal efficiency is as high as 37.1%.
  • Figure 11 is the change curve of CO 2 concentration at the outlet of the electric field device with treatment time.
  • the initial CO 2 concentration is 903.3 mg/m 3. It can be seen from Figure 11 that the CO 2 concentration increases rapidly after the UV lamp is turned on. When the treatment time reaches After 453s, the CO 2 concentration reached 1126 mg/m 3 , and then the CO 2 concentration remained relatively stable within the range of 1135 mg/m 3 . It can be seen that the opening of the dust removal electric field has little effect on the amount of CO 2 produced.
  • Figure 12 shows the change curve of PM2.5 at the outlet of the electric field device with processing time.
  • the original PM2.5 value in the VOCs gas is 25 ⁇ g/m 3 ; from Figure 12, when After turning on the ultraviolet device alone, PM2.5 increased rapidly, and the final PM2.5 value remained at about 5966 ⁇ g/m 3 , that is, PM2.5 increased by about 240 times.
  • the DC power supply of the electric field device was turned on at 717s, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out. Within 60 seconds of turning on the electric field device, the PM 2.5 value dropped to 10 ⁇ g/m 3 , and the removal efficiency of PM 2.5 was 99.8%.
  • the PN value content of solid particles of different sizes in the original VOCs gas is detected.
  • the particle number (PN value) distribution of the solid particles of different sizes in the original VOCs gas is shown in Table 2.
  • the PN value of 23nm, 0.3 ⁇ m, 0.5 ⁇ m, 1.0 ⁇ m, 3.0 ⁇ m, 5.0 ⁇ m, 10 ⁇ m solid particles increased to 2585933682 pieces/m 3 , 122762968 pieces/m 3 , 122596749 pieces/m 3 , 120574982 pieces, respectively /m 3 , 117328622 pieces/m 3 , 112109682 pieces/m 3 , 105862049 pieces/m 3 .
  • Electric field device the electric field device of Embodiment 12 is used, and the others are the same as Embodiment 20.
  • VOCs with an initial flow rate of 0.95m 3 /h and an initial concentration of 320mg/m 3 are passed into the ultraviolet device and the electric field device in sequence.
  • the DC power supply of the electric field device was turned on at 717s, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out. Within 60 seconds of turning on the electric field device, the PM 2.5 value dropped to 0.02 ⁇ g/m 3 , and the removal efficiency of PM 2.5 was 99%. .
  • the DC power supply of the electric field device was turned on, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out.
  • the experimental data is shown in Table 7.
  • the data in Table 7 are the average values of 6 samples.
  • the PN of the gas at the outlet of the dust removal zone drops significantly.
  • the DC power supply parameters of the electric field device were adjusted to 9.10kV and 2.98mA, and the experiment of removing organic solid particles was carried out.
  • the experimental data is shown in Table 9.
  • the data in Table 9 are the average values of 6 samples. Under this electric field condition, the solid particles of 23nm, 0.3 ⁇ m and 0.5 ⁇ m further dropped to 564, 82/m 3 and 7/m 3 , and the removal efficiency reached 99.99%.
  • Electric field device the electric field device of embodiment 13 is used, and the others are the same as embodiment 20.
  • VOCs with an initial flow rate of 0.95m 3 /h and an initial concentration of 320mg/m 3 are passed into the ultraviolet device and the electric field device in sequence.
  • the DC power supply of the electric field device was turned on at 717s, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out. Within 60 seconds of turning on the electric field device, the PM 2.5 value dropped to 0.02 ⁇ g/m 3 , and the removal efficiency of PM 2.5 was 99%. .
  • the DC power supply parameters of the electric field device were adjusted to 9.10kV and 2.98mA, and the experiment of removing organic solid particles was carried out.
  • the experimental data is shown in Table 12.
  • the data in Table 12 are the average values of 6 samples. Under this electric field condition, the solid particles of 23nm, 0.3 ⁇ m and 0.5 ⁇ m further dropped to 345 particles/m 3 , 8 particles/m 3 and 0 particles/m 3 , and the removal efficiency reached 99.99%.
  • Electric field device the electric field device of embodiment 14 is used, and the others are the same as embodiment 20.
  • VOCs with an initial flow rate of 0.95m 3 /h and an initial concentration of 320mg/m 3 are passed into the ultraviolet device and the electric field device in sequence.
  • the DC power supply of the electric field device was turned on at 717s, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out. Within 60 seconds of turning on the electric field device, the PM 2.5 value dropped to 0.02 ⁇ g/m 3 , and the removal efficiency of PM 2.5 was 99%. .
  • the DC power supply of the electric field device was turned on at 717s, and the experiment of removing organic solid particles under the electric field conditions of 5.13kV and 0.15mA was carried out.
  • the experimental data is shown in Table 13, and the data in Table 13 are the average values of 6 samples.
  • the PN of the gas at the outlet of the dust removal zone drops significantly.
  • the DC power supply parameters of the electric field device were adjusted to 9.10kV and 2.98mA, and the experiment of removing organic solid particles was carried out.
  • the experimental data is shown in Table 15.
  • the data in Table 15 are the average of 6 samples. Under the electric field condition, the solid particles of 23nm, 0.3 ⁇ m and 0.5 ⁇ m further decreased to 435 particles/m 3 , 0 particles/m 3 and 0 particles/m 3 , and the removal efficiency was 99.99%.
  • Electric field device the electric field device of Embodiment 15 is used, and the others are the same as Embodiment 20.
  • VOCs with an initial flow rate of 0.95m 3 /h and an initial concentration of 320mg/m 3 are passed into the ultraviolet device and the electric field device in sequence.
  • the DC power supply of the electric field device was turned on at 717s, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out.
  • the removal efficiency of PM2.5 within 60s of turning on the electric field device was 99.9%.
  • the DC power supply parameters of the electric field device were adjusted to 9.10kV and 2.98mA, and the experiment of removing organic solid particles was carried out.
  • the experimental data is shown in Table 18.
  • the data in Table 18 are the average of 6 samplings. Under this electric field condition, the solid particles of 23nm, 0.3 ⁇ m and 0.5 ⁇ m further decreased to 323 pieces/m 3 , 0 pieces/m 3 and 0 pieces/m 3 , and the removal efficiency reached 99.99%.
  • Electric field device the electric field device of Embodiment 16 is used, and the others are the same as Embodiment 20.
  • VOCs with an initial flow rate of 0.95 m 3 /h and an initial concentration of 320 mg/m 3 are passed into the ultraviolet device 4 and the electric field device 5 in sequence.
  • the DC power supply of the electric field device was turned on, and the experiment of removing organic solid particles under the conditions of 5.13kV and 0.15mA electric field was carried out.
  • the PM 2.5 value dropped to 0.21 ⁇ g/m 3 , and the removal efficiency of PM 2.5 was 99%. .
  • the DC power supply parameters of the electric field device were adjusted to 9.10kV and 2.98mA, and the experiment of removing organic solid particles was carried out.
  • the experimental data is shown in Table 21.
  • the data in Table 21 are the average values of 6 samples. Under the electric field condition, the solid particles of 23nm, 0.3 ⁇ m and 0.5 ⁇ m further decreased to 5333 particles/m 3 , 0 particles/m 3 and 5 particles/m 3 , and the removal efficiency reached 99.99%.
  • Example 26 Combined purification of UV + molecular sieve + activated carbon (hereinafter referred to as “combined purification”)
  • This embodiment provides a method for processing VOCs gas, including:
  • the gas containing VOCs is subjected to UV purification treatment to obtain the product after UV treatment of VOCs;
  • the product after UV treatment of VOCs is adsorbed and purified, and then subjected to electric field dust removal treatment.
  • FIG. 13 for the schematic flow diagram of the main experimental device in this embodiment.
  • the VOCs gas treatment device includes an ultraviolet device 4 and an adsorption device 6 connected in sequence.
  • the ultraviolet device 4 includes an air inlet 41, an air outlet 42, and an ultraviolet lamp 43.
  • the adsorption device 6 includes an air inlet 61 and an air outlet 62, and the air inlet 61 of the adsorption device 6 is in communication with the air outlet 42 of the ultraviolet device 4.
  • the clean space enters the air humidification tank 1, the humidity of the clean air is adjusted in the air humidification tank 1, the VOCs stock solution is stored in the VOCs storage tank 2, and the clean air from the air humidification tank 1 is combined with the VOCs storage tank
  • the VOCs stock solution is mixed in the mixing buffer tank 3, the gas flow of the clean air and the VOCs stock solution is controlled, and the mixed VOCs gas is passed into the ultraviolet device 4 and the adsorption device 6 in sequence.
  • a part of it is purified by UV photolysis and photooxidation.
  • the remaining VOCs molecules are purified and removed by physical adsorption of molecular sieve with porous structure + activated carbon.
  • the finally purified gas is discharged through the outlet of the adsorption device, and can then enter the electric field device for dust removal to achieve the purpose of VOCs gas purification.
  • the ultraviolet device 4 is equipped with a 150W U-shaped ultraviolet lamp tube 43, and the adsorption device 6 is filled with 25.1g molecular sieve 63 and 30.8g active 64 respectively.
  • the humidity of the VOCs gas entering the air inlet 41 of the ultraviolet device 4 is controlled above 90% RH. Adjust the gas flow rate of clean air and VOCs stock solution, and control the gas flow rate and concentration of VOCs at 0.9m 3 /h and 614mg/m 3 , see 23 for other experimental parameters.
  • Figure 14 shows the time-varying curve of VOCs concentration at the air inlet 41, air outlet 42, and outlet 62 of the ultraviolet device 4 when purifying low VOCs concentration, where A shows the VOCs concentration at the outlet of the buffer tank, and B shows ultraviolet The VOCs concentration at the outlet 42 of the device 4, C shows the VOCs concentration at the outlet 62 of the adsorption device 6.
  • A shows the VOCs concentration at the outlet of the buffer tank
  • B shows ultraviolet The VOCs concentration at the outlet 42 of the device 4
  • C shows the VOCs concentration at the outlet 62 of the adsorption device 6.
  • the VOCs concentration at the outlet 62 of the adsorption device 6 30mg/m 3 (when the VOCs concentration is set to 5% of the original concentration, the adsorbent penetrates), the adsorbent penetrates, before penetration, combination
  • the purification efficiency is at least 95%;
  • the combined purification efficiency gradually decreases.
  • the concentration of the outlet 62 of the adsorption device 6 rises to 197mg/m 3 , at this time the concentration of the outlet of the ultraviolet device is 219mg/m 3 , that is The concentration before and after the adsorption purification is basically the same.
  • the molecular sieve + activated carbon combined adsorbent has reached saturation and can no longer play the role of adsorbing and purifying VOCs.
  • the saturated adsorbent needs to be replaced in advance and VOCs desorption regeneration.
  • the entire combined purification process from the beginning of the purification to the saturation of the adsorbent in the adsorption device, totals about 7200 seconds. According to the statistics of this test, the VOCs purification efficiency of the UV purification device is basically maintained at about 40.9%.
  • Figure 15 shows the change curve of CO 2 concentration at the inlet, outlet and outlet of the ultraviolet device with time when purifying low VOCs concentration.
  • A shows the CO 2 concentration at the outlet of the buffer tank and B shows the outlet of the ultraviolet device.
  • C is the display device of the source outlet concentration of CO 2 adsorption. It can be seen from Figure 15 that the CO 2 concentration at the inlet of the ultraviolet device is maintained at an average level of 852 mg/m 3.
  • the CO 2 concentration at the outlet of the ultraviolet device is basically maintained at a relatively stable level. 1284mg/m 3 , the new generation rate of CO 2 after UV purification is stable at about 50.7%.
  • the CO 2 concentration at the outlet of the adsorption device reached the maximum value of 1584 mg/m 3 after 360 seconds, and then remained at a relatively stable level of 1472 mg/m 3 , that is, the new CO 2 generation rate of the combined purification was stabilized at about 72.8%.
  • UV contrast at the purge outlet means and the adsorption means and a newly generated CO concentration ratio of 2 it is found, the new generation of CO concentration and the adsorption device 2 is still a substantial increase in, since outlet VOCs from the UV unit, O 3, After H2O enters the adsorption zone, it can be adsorbed on the outer surface of molecular sieve and activated carbon and the inner surface of the pores, and the catalytic oxidation and decomposition of VOCs will continue to generate CO 2 to further purify the VOCs in the exhaust gas.
  • the PM2.5 value in the 0.9m 3 /h and 614mg/m 3 VOCs gas was 79 ⁇ g/m 3.
  • the PM2.5 value in the outlet gas of the adsorption device rose to 6096 ⁇ g/m 3 , PM2.5 increased nearly 77 times.
  • VOCs not only decompose to generate CO 2 in the process of UV photolysis and photooxidation, but also undergo photopolymerization. VOCs molecules polymerize to form organic particles with high molecular weight, which are dispersed in the gas.
  • Figure 16 shows the time-varying curve of VOCs concentration at the inlet and outlet of the ultraviolet device and the outlet of the adsorption device when purifying high VOCs concentration.
  • A shows the VOCs concentration at the outlet of the buffer tank
  • B shows the VOCs at the outlet of the ultraviolet device.
  • Concentration, C shows the VOCs concentration at the outlet of the adsorption device. It can be seen from Figure 16 that from the change curve of the VOCs concentration C7 at the outlet of the adsorption device, it can be seen that at the beginning of the combined purification test, the VOCs concentration at the outlet of the adsorption zone within 0s-600s stabilized at 8-19mg/m 3. The combined purification during this period The efficiency reaches 98.3%.
  • the VOCs concentration at the outlet of the adsorption zone 55mg/m 3 (when the VOCs concentration is set to 5% of the original concentration, the adsorbent penetrates), the adsorbent penetrates, and the combined purification efficiency is at least 94.7% before penetration ;
  • the combined purification efficiency gradually decreases.
  • the outlet concentration at the outlet of the adsorption device rises to 451mg/m 3
  • the UV device outlet concentration C5 is 456mg/m 3
  • molecular sieve +The activated carbon combined adsorbent has reached saturation and can no longer play the role of adsorbing and purifying VOCs.
  • the combined purification efficiency has dropped to 41.1%, and only the ultraviolet device can perform purification.
  • the entire combined purification process from the beginning of the purification to the saturation of the adsorbent in the adsorption device, takes about 7200 seconds. According to the statistics of this test, the VOCs purification efficiency of the UV purification device is basically maintained at about 41.1%.
  • Figure 17 shows the change curve of CO 2 concentration at the inlet, outlet, and adsorption device outlet of the ultraviolet device with time when purifying high VOCs concentration.
  • A shows the CO 2 concentration at the outlet of the buffer tank
  • B shows the outlet of the ultraviolet device at the CO 2 concentration
  • C is the display device of the source outlet concentration of CO 2 adsorption.
  • the CO 2 concentration at the outlet of the adsorption device reached the maximum value of 1748 mg/m 3 after 360 seconds, and then remained at a relatively stable level of 1679 mg/m 3 , that is, the new CO 2 generation rate of the combined purification stabilized at about 90.3%.
  • the PM2.5 value in the 0.9m 3 /h and 1105mg/m 3 VOCs gas was 17 ⁇ g/m 3
  • the PM2.5 value in the outlet gas of the adsorption device rose to 5580 ⁇ g/m 3
  • the present invention effectively overcomes various shortcomings in the prior art and has high industrial value.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electromagnetism (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Electrostatic Separation (AREA)

Abstract

L'invention concerne un appareil de traitement de gaz de contaminants organiques volatils. L'appareil de traitement de gaz de contaminants organiques volatils comprend : une entrée, une sortie et un canal d'écoulement situé entre l'entrée et la sortie ; et l'appareil de traitement de gaz de contaminants organiques volatils comprend en outre un appareil à rayons ultraviolets (4) et un appareil à champ électrique (5), l'appareil à rayons ultraviolets (4) et l'appareil à champ électrique (5) étant agencés le long du canal d'écoulement dans la direction à partir de l'entrée jusqu'à la sortie en séquence. L'appareil à champ électrique (5) comprend une entrée d'appareil à champ électrique (51), une sortie d'appareil à champ électrique (52), une cathode de champ électrique (10142) et une anode de champ électrique (10141), la cathode de champ électrique (10142) et l'anode de champ électrique (10141) étant utilisées pour générer un champ électrique ionisant de retrait de poussières. L'appareil utilise le champ électrique pour retirer la poussière et retirer efficacement des nanoparticules dans le produit généré après un gaz de traitement à l'aide d'une irradiation d'ultraviolets, et évite une pollution secondaire. L'invention concerne en outre un procédé de traitement de gaz de contaminants organiques volatils.
PCT/CN2020/086865 2019-04-25 2020-04-24 Appareil et procédé de traitement de gaz de contaminants organiques volatils WO2020216369A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202090000499.5U CN218235209U (zh) 2019-04-25 2020-04-24 一种电场装置及VOCs气体处理装置

Applications Claiming Priority (20)

Application Number Priority Date Filing Date Title
CN201910340443.8 2019-04-25
CN201910340445.7 2019-04-25
CN201910340443 2019-04-25
CN201910340445 2019-04-25
CN201910446294.3 2019-05-27
CN201910446294 2019-05-27
CN201910452169 2019-05-28
CN201910452169.3 2019-05-28
CN201910521796 2019-06-17
CN201910522488 2019-06-17
CN201910521796.8 2019-06-17
CN201910522488.7 2019-06-17
CN201910605156 2019-07-05
CN201910605156.5 2019-07-05
CN201910636710 2019-07-15
CN201910636710.6 2019-07-15
CN202010296602.1A CN113522023A (zh) 2020-04-15 2020-04-15 一种发动机尾气中VOCs气体处理系统和方法
CN202010295734.2 2020-04-15
CN202010295734.2A CN113521984A (zh) 2020-04-15 2020-04-15 一种VOCs气体处理装置及方法
CN202010296602.1 2020-04-15

Publications (1)

Publication Number Publication Date
WO2020216369A1 true WO2020216369A1 (fr) 2020-10-29

Family

ID=72940613

Family Applications (10)

Application Number Title Priority Date Filing Date
PCT/CN2020/086864 WO2020216368A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé pour traiter un gaz cov
PCT/CN2020/086860 WO2020216364A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement de gaz à cov dans un gaz d'échappement de moteur
PCT/CN2020/086863 WO2020216367A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé de traitement de gaz cov
PCT/CN2020/086865 WO2020216369A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé de traitement de gaz de contaminants organiques volatils
PCT/CN2020/086856 WO2020216361A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement de gaz cov dans un gaz d'échappement de moteur
PCT/CN2020/086862 WO2020216366A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé de traitement des gaz cov
PCT/CN2020/086858 WO2020216363A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement de gaz cov contenus dans un gaz résiduaire de moteur
PCT/CN2020/086861 WO2020216365A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement des gaz cov contenus dans un gaz d'échappement de moteur
PCT/CN2020/086866 WO2020216370A1 (fr) 2019-04-25 2020-04-24 Dispositif et procédé de traitement de gaz cov
PCT/CN2020/086857 WO2020216362A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement des gaz cov dans un gaz d'échappement de moteur

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/CN2020/086864 WO2020216368A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé pour traiter un gaz cov
PCT/CN2020/086860 WO2020216364A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement de gaz à cov dans un gaz d'échappement de moteur
PCT/CN2020/086863 WO2020216367A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé de traitement de gaz cov

Family Applications After (6)

Application Number Title Priority Date Filing Date
PCT/CN2020/086856 WO2020216361A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement de gaz cov dans un gaz d'échappement de moteur
PCT/CN2020/086862 WO2020216366A1 (fr) 2019-04-25 2020-04-24 Appareil et procédé de traitement des gaz cov
PCT/CN2020/086858 WO2020216363A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement de gaz cov contenus dans un gaz résiduaire de moteur
PCT/CN2020/086861 WO2020216365A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement des gaz cov contenus dans un gaz d'échappement de moteur
PCT/CN2020/086866 WO2020216370A1 (fr) 2019-04-25 2020-04-24 Dispositif et procédé de traitement de gaz cov
PCT/CN2020/086857 WO2020216362A1 (fr) 2019-04-25 2020-04-24 Système et procédé de traitement des gaz cov dans un gaz d'échappement de moteur

Country Status (2)

Country Link
CN (9) CN113727781A (fr)
WO (10) WO2020216368A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114577543A (zh) * 2022-02-18 2022-06-03 中国环境科学研究院 用于检测尾气中颗粒物排放量的系统及方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1233195A (zh) * 1996-10-09 1999-10-27 零排放技术公司 SO2和NOx屏障放电转化为酸
WO2007116131A1 (fr) * 2006-04-11 2007-10-18 Renault S.A.S Dispositif et procede de capture et d’elimination de particules agglomerees issues d’un filtre a particules de vehicule automobile
CN200981021Y (zh) * 2006-09-13 2007-11-28 大连海事大学 一种针阵列电极双极捕集高温碳烟装置
CN101636563A (zh) * 2007-03-29 2010-01-27 丰田自动车株式会社 废气净化装置
CN102536394A (zh) * 2012-03-05 2012-07-04 尹协谦 车辆尾气排放终端净化器
JP2014118850A (ja) * 2012-12-14 2014-06-30 Denso Corp 内燃機関の排ガス処理装置
CN205518217U (zh) * 2016-04-17 2016-08-31 曹阳 一种用于机动车尾气净化器的电极装置
CN107708869A (zh) * 2015-06-09 2018-02-16 臼井国际产业株式会社 柴油机引擎废气处理用电气集尘装置的放电电极

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711312A1 (de) * 1987-04-03 1988-10-13 Daimler Benz Ag Dieselbrennkraftmaschine mit einem abgasleitungssystem
JPS6456121A (en) * 1987-06-01 1989-03-03 Ebara Corp Process and apparatus for treating waste gas with irradiation of radiant ray
JP2000005631A (ja) * 1998-06-19 2000-01-11 Hitachi Ltd 空気清浄装置
KR100469005B1 (ko) * 2001-10-23 2005-01-29 티오켐 주식회사 휘발성 유기화합물 제거를 위한 광촉매 반응장치
US6902604B2 (en) * 2003-05-15 2005-06-07 Fleetguard, Inc. Electrostatic precipitator with internal power supply
US7025806B2 (en) * 2003-11-25 2006-04-11 Stri{dot over (o)}nAir, Inc. Electrically enhanced air filtration with improved efficacy
JP2006043550A (ja) * 2004-08-03 2006-02-16 Mitsubishi Electric Corp 空気清浄装置
JP2010133332A (ja) * 2008-12-04 2010-06-17 Nissan Motor Co Ltd 触媒装置
CN103566753B (zh) * 2013-11-18 2017-01-18 沈阳工业大学 餐饮油烟一体化处理系统及方法
JP2015171440A (ja) * 2014-03-11 2015-10-01 株式会社Ｎｂｃメッシュテック 深紫外線照射によるウイルス不活化方法、及び装置
CN103977896B (zh) * 2014-05-21 2017-06-06 邹炎 湿式电除尘装置及其隔板的生产工艺
CN104127907A (zh) * 2014-08-06 2014-11-05 上海侃亿诺纺织品有限公司 非热等离子体空气净化消毒反应器
CN105240090B (zh) * 2015-10-28 2018-04-24 重庆工商大学 一种用于去除汽车尾气颗粒物的技术方法
CN105233646A (zh) * 2015-11-18 2016-01-13 温州伟诚环保科技有限公司 有机废气处理装置
CN107281908A (zh) * 2016-04-13 2017-10-24 江苏中科睿赛污染控制工程有限公司 一种含油烟VOCs废气处理装置及其处理方法和用途
CN205518221U (zh) * 2016-04-14 2016-08-31 北京中航天业科技有限公司 餐饮油烟带自清洁功能的近零排放净化装置
CN105944555A (zh) * 2016-05-10 2016-09-21 湖州荣大环境科技有限公司 一种印染定型机烟气处理装置
CN205760628U (zh) * 2016-07-01 2016-12-07 浙江杰隆环境科技有限公司 一种复合型废气净化装置
CN106269256A (zh) * 2016-08-10 2017-01-04 福建龙净环保股份有限公司 一种用于烟气净化的电除雾器
CN205949064U (zh) * 2016-08-15 2017-02-15 中冶京诚工程技术有限公司 立式湿式电除尘器及其分级冲洗装置
CN206253232U (zh) * 2016-09-07 2017-06-16 深圳市天浩洋环保股份有限公司 一种高压静电除尘与uv光解净化一体设备
CN106215658B (zh) * 2016-09-26 2019-05-03 深圳市东荣环保科技有限公司 废气环保处理设备
CN106582265A (zh) * 2016-11-16 2017-04-26 中山大学 一种光催化氧化的空气净化装置和方法
CN106762035A (zh) * 2017-03-19 2017-05-31 贾元友 燃油发动机汽车尾气排放净化系统
CN106733194B (zh) * 2017-03-31 2018-10-16 广东美的厨房电器制造有限公司 静电装置和油烟机
CN206771580U (zh) * 2017-04-01 2017-12-19 姚本海 一种空气净化脱尘装置
CN206823397U (zh) * 2017-04-08 2018-01-02 苏州鱼翔环境工程有限公司 一种voc废气净化设备
CN107081036B (zh) * 2017-06-27 2020-08-04 山东大学 一种紫外活化臭氧氧化VOCs除尘净化装置及方法
CN207462987U (zh) * 2017-07-07 2018-06-08 中山市中开环保设备制造有限公司 一种VOCs废气处理装置
CN107115790A (zh) * 2017-07-07 2017-09-01 中山市中开环保设备制造有限公司 一种VOCs废气处理装置
CN207153476U (zh) * 2017-09-15 2018-03-30 桐乡市致远环保科技有限公司 一种处理高温含油、含尘有机恶臭废气的净化设备
CN107469596A (zh) * 2017-09-19 2017-12-15 佛山市宝粤美科技有限公司 一种新型废气治理系统
CN107583454A (zh) * 2017-09-27 2018-01-16 浙江工业大学 一种脉冲电晕结合光催化去除有机废气的装置及处理方法
CN207371354U (zh) * 2017-10-31 2018-05-18 福建省爱善环保科技有限公司 一种有机有毒有害废气回收利用装置
CN107930851A (zh) * 2017-11-23 2018-04-20 北京东方计量测试研究所 一种静电除尘装置
CN107983104A (zh) * 2017-12-28 2018-05-04 哈尔滨理工大学 一种油漆厂静电除尘联合等离子体除VOCs装置与方法
CN208097764U (zh) * 2018-03-19 2018-11-16 江苏万贤环境工程有限公司 一种光解氧化低浓度VOCs处理设备
CN108480048B (zh) * 2018-06-11 2023-10-24 山东山创环境科技有限公司 一种线放电技术的油烟净化装置
CN208679458U (zh) * 2018-06-13 2019-04-02 湖北徐风环保科技有限公司 一种组合湿式电除尘器
CN109045921A (zh) * 2018-10-11 2018-12-21 郑金华 新能源工业废气处理装置及使用方法
CN113366198B (zh) * 2018-10-22 2023-08-15 上海必修福企业管理有限公司 一种发动机排放处理系统和方法
CN109127144A (zh) * 2018-10-23 2019-01-04 国电科学技术研究院有限公司 高频与脉冲分域耦合微细颗粒物深度脱除系统

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1233195A (zh) * 1996-10-09 1999-10-27 零排放技术公司 SO2和NOx屏障放电转化为酸
WO2007116131A1 (fr) * 2006-04-11 2007-10-18 Renault S.A.S Dispositif et procede de capture et d’elimination de particules agglomerees issues d’un filtre a particules de vehicule automobile
CN200981021Y (zh) * 2006-09-13 2007-11-28 大连海事大学 一种针阵列电极双极捕集高温碳烟装置
CN101636563A (zh) * 2007-03-29 2010-01-27 丰田自动车株式会社 废气净化装置
CN102536394A (zh) * 2012-03-05 2012-07-04 尹协谦 车辆尾气排放终端净化器
JP2014118850A (ja) * 2012-12-14 2014-06-30 Denso Corp 内燃機関の排ガス処理装置
CN107708869A (zh) * 2015-06-09 2018-02-16 臼井国际产业株式会社 柴油机引擎废气处理用电气集尘装置的放电电极
CN205518217U (zh) * 2016-04-17 2016-08-31 曹阳 一种用于机动车尾气净化器的电极装置

Also Published As

Publication number Publication date
CN113748259A (zh) 2021-12-03
CN216974977U (zh) 2022-07-15
WO2020216364A1 (fr) 2020-10-29
CN113710881A (zh) 2021-11-26
CN113710366A (zh) 2021-11-26
CN113747976A (zh) 2021-12-03
WO2020216363A1 (fr) 2020-10-29
CN113727781A (zh) 2021-11-30
WO2020216366A1 (fr) 2020-10-29
WO2020216361A1 (fr) 2020-10-29
CN113748258A (zh) 2021-12-03
CN113710350A (zh) 2021-11-26
WO2020216362A1 (fr) 2020-10-29
WO2020216367A1 (fr) 2020-10-29
WO2020216370A1 (fr) 2020-10-29
WO2020216368A1 (fr) 2020-10-29
CN218235209U (zh) 2023-01-06
WO2020216365A1 (fr) 2020-10-29

Similar Documents

Publication Publication Date Title
CN104043320B (zh) 一种光催化等离子体结合超声波处理室内空气污染的方法
WO2017128694A1 (fr) Dispositif de purification d'air à plasma à basse température du type à auto-inhalation à vent ionique à grande vitesse
CN201389210Y (zh) 空气净化装置
RU94669U1 (ru) Устройство для санитарно-гигиенической обработки воздуха
CN106861340B (zh) 一种多功能空气净化装置
WO2020083172A1 (fr) Système de dépoussiérage de gaz d'échappement et d'air monté sur véhicule et véhicule et procédé correspondants
CN105289297A (zh) 一种治理有机废气的等离子体反应装置及方法
WO2020216369A1 (fr) Appareil et procédé de traitement de gaz de contaminants organiques volatils
CN2656867Y (zh) 高吸附性多功能空气净化器
CN202666618U (zh) 复合空气净化装置
CN1276224C (zh) 高吸附性多功能空气净化器
CN206285631U (zh) 一种附加吸附单元的低温等离子净化装置
CN113522023A (zh) 一种发动机尾气中VOCs气体处理系统和方法
CN111318140A (zh) 一种过滤式介质阻挡放电烟气净化系统及方法
CN106014547A (zh) 一种荷电细水雾净化汽车尾气的装置
KR20190076432A (ko) 탄소계 코팅층을 갖는 플라즈마 와이어 및 이를 이용한 집진기
CN201906560U (zh) 气体排污处理装置
CN113521984A (zh) 一种VOCs气体处理装置及方法
CN203555979U (zh) 非均匀介质阻挡放电/纳米TiO2空调系统净化消毒装置
WO2014139051A1 (fr) Équipement de purification d'air à écoulement élevé
CN214715571U (zh) 一种瞬时裂解流动相空气中微生物和有害气体的装置
CN109107378A (zh) 一种新型空气净化系统
CN113366200B (zh) 车载尾气和空气除尘系统、车辆及方法
CN212396380U (zh) 一种臭氧去除装置以及包括其的电场净化系统
KR20100123786A (ko) 다중 미세 플라즈마 발생시스템

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20795591

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20795591

Country of ref document: EP

Kind code of ref document: A1