Gas particulate matter purification device, system, mask system and table

Abstract

The present invention discloses a gas particulate matter purification apparatus, system, mask system, and table for adsorbing and purifying particulate matter in a gas. The gas particulate matter purification apparatus comprises a front discharge electrode group and an adsorption unit, wherein the front discharge electrode group is located in front of the adsorption unit along the direction of gas flow and is at a distance from the adsorption unit, the front discharge electrode group includes at least one discharge beam connected to a DC high-voltage power supply, and the adsorption unit includes at least one adsorption electrode and at least one discharge electrode for forming an adsorption electric field, wherein a gas flow path for passing the gas and performing the electric field treatment is formed between the discharge electrode and the adsorption electrode, and the distance between adjacent discharge electrodes and adsorption electrodes is the same. After the gas is purified by the gas particulate matter purification apparatus, a sterile, radiation-free, and virus-free clean gas can be obtained.

Description

[Technical Field]

[0001] The present invention relates to the technical field, and more specifically to a gas particulate matter purification device, system, mask system, and table. [Background technology]

[0002] As people's environmental awareness increases, so does the recognition of and demand for purification of air pollutants (including, but not limited to, smoke, dust, VOCs, and engine exhaust). Therefore, more and better purification technologies are gradually being installed and used in vehicles, factories, and residential environments. Among these purification technologies, electrostatic adsorption dust removal technology is widely applied. The principle of electrostatic adsorption dust removal technology is that when a gas passes through an electrostatic field, it is ionized, and particulate matter in the gas combines with charged ions. These parts then move toward an electrode with the opposite polarity to the charged ions and accumulate. The removal rate of particulate matter is correlated with the charging efficiency of the particulate matter. Existing technologies have a technical problem: the low charging efficiency of particulate matter results in undesirable particulate matter removal rates and purification effects. The core electrostatic field consists largely of an adsorption plate and cathode rays placed within it. Therefore, the technology of adsorption plates and cathode rays is key to improving the removal rate of particulate matter.

[0003] Internal combustion engine exhaust gases contain large amounts of particulate matter and pollutants such as nitrogen oxides, and existing technologies use diesel particulate filters (DPFs) to filter out particulate matter. While DPFs can filter out large particles, their high back pressure increases engine fuel and energy consumption, significantly raising operating costs. Therefore, there is an urgent need to find a new method for removing particulate matter that overcomes the problems inherent in electrostatic adsorption dust removal technology and the high back pressure problem of DPFs. [Overview of the Initiative]

[0004] The object of the present invention is to provide a gas particulate matter purification device, system, mask system, and table in order to solve the problems in the existing technologies described above.

[0005] To solve the above problems, according to a first aspect of the present invention, a gas particulate matter purification device is provided for adsorbing and purifying particulate matter in a gas, and the gas particulate matter purification device is

[0006] It comprises a front discharge electrode group and an adsorption unit,

[0007] Along the direction of gas flow, the front discharge electrode group is located in front of the adsorption unit and has a distance between it and the adsorption unit.

[0008] The front discharge electrode group includes at least one discharge beam connected to a DC high-voltage power supply,

[0009] The adsorption unit includes at least one adsorption electrode and at least one discharge electrode for forming an adsorption electric field, of which,

[0010] A gas channel is formed between the discharge electrode and the adsorption electrode for passing the gas and performing the electric field treatment, and the distance between adjacent discharge electrodes and adsorption electrodes is the same.

[0011] Optionally,

[0012] The end of the adsorption electrode closest to the front discharge electrode group protrudes forward more than the end of the discharge electrode closest to the front discharge electrode group, or

[0013] The end of the adsorption electrode closest to the front discharge electrode group and the end of the discharge electrode closest to the front discharge electrode group lie on the same plane perpendicular to the airflow direction.

[0014] Optionally, the discharge electrode includes a first discharge electrode end close to the front discharge electrode group, the adsorption electrode includes a first adsorption electrode end close to the front discharge electrode group, the first adsorption electrode end is located in front of the first discharge electrode end, and the distance range between the orthogonal projection of the first discharge electrode end onto the adsorption electrode and the first adsorption electrode end is 10 cm or less.

[0015] Optionally, the distance range between the orthogonal projection of the first end of the adsorption electrode onto the discharge electrode and the first end of the discharge electrode is 3 cm or less.

[0016] Optionally, the gas particulate matter purification device comprises power supply 1 and power supply 2, wherein both ends of power supply 1 are electrically connected to the discharge beam and the adsorption electrode, respectively, and both ends of power supply 2 are electrically connected to the discharge electrode and the adsorption electrode, respectively, with the adsorption electrode being grounded.

[0017] Optionally, the discharge beam

[0018] (1) The discharge beam includes n metal wires and / or conductive nonmetallic wires, of which n is 0.1 million or more.

[0019] (2) The discharge beam includes a plurality of metal wires and / or conductive nonmetal wires Satisfying one or two of the following conditions,

[0020] The diameter range of the metal wire is 0.1 to 100 μm, or the diameter range of the conductive nonmetallic wire is 0.1 to 100 μm.

[0021] Optionally, the metal wire includes at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, or nickel alloy wire, or the conductive nonmetallic wire is carbon fiber wire.

[0022] Optionally, the single fiber diameter range of the stainless steel fiber wire is 5 to 100 μm, or the single fiber diameter range of the carbon fiber wire is 5 to 100 μm.

[0023] Optionally, the front discharge electrode group includes at least one discharge electrode group, and the discharge electrode group includes a plurality of the discharge beams installed in the circumferential direction, among which,

[0024] When the front discharge electrode group includes a plurality of discharge electrode groups with different radii, the plurality of discharge electrode groups are coaxially installed.

[0025] Optionally, one ends of the plurality of the metal wires and / or the conductive non-metal wires are fixed together to form a fixed end, and the other ends are free ends facing the adsorption unit, among which, the front discharge electrode group further includes a support plate, and the fixed end of the discharge beam is fixed to the support plate.

[0026] Optionally, the outermost adsorption electrode in the adsorption unit is an outer adsorption electrode, one end of the outer adsorption electrode extends to form an extension part, and the front discharge electrode group is installed in the extension part.

[0027] Optionally, the vertical distance between the front discharge electrode group and the extension part is 5 to 150 mm,

[0028] Optionally, the vertical distance between the front discharge electrode group and the extension part is 5 to 20 mm.

[0029] Optionally, an insulating layer is provided on the inner wall of the extension part, and the front discharge electrode group is installed in the insulating layer, and there is a distance between the insulating layer and the front discharge electrode group.

[0030] Optionally, the vertical distance between the front discharge electrode group and the insulating layer is 5 to 150 mm,

[0031] Optionally, the vertical distance between the front discharge electrode group and the insulating layer is 5 to 20 mm.

[0032] Optionally, the adsorption electrode and the discharge electrode are both hollow tubes of different diameters, the discharge electrode and the adsorption electrode are fitted coaxially, and the discharge electrode and the adsorption electrode are alternately arranged in a direction from the axis toward the outer circumference, the distance between the discharge electrode and the adsorption electrode is the same, and a gas channel is formed between the discharge electrode and the adsorption electrode for passing the gas in order to perform electric field processing.

[0033] The cross-section of the hollow tube can be optionally circular or polygonal.

[0034] The polygon is optionally hexagonal or rectangular.

[0035] Optionally, the hollow tube with the smallest diameter in the adsorption unit is an internal discharge electrode or an internal adsorption electrode, and the gas particulate matter purification device further includes a power supply, the power supply being installed within the internal discharge electrode or internal adsorption electrode.

[0036] Optionally, both the adsorption electrode and the discharge electrode are flat plates, the discharge electrode and the adsorption electrode are arranged alternately in parallel, the distance between the discharge electrode and the adsorption electrode is the same, and a gas channel is formed between the discharge electrode and the adsorption electrode for passing the gas in order to perform electric field processing.

[0037] Optionally, the gas particulate matter purification device is:

[0038] Feature 1: The distance range between the discharge electrode and the adsorption electrode is 30 mm or less, optionally 10 mm or less, optionally 2.5 to 10 mm, or 3 to 6 mm.

[0039] Feature 2: The voltage range between the discharge electrode and the adsorption electrode is -0.5kV to -12kV, optionally, the voltage range between the discharge electrode and the adsorption electrode is -1kV to -8kV, optionally, the voltage range is -1kV to -3kV, optionally, the voltage range is -0.5kV to -3kV,

[0040] Feature 3: When the distance between the discharge electrode and the adsorption electrode is 10 mm or less, the voltage range between the adsorption electrode and the discharge electrode is -0.5 to -12 kV.

[0041] Feature 4: The ratio of the discharge area of ​​the front discharge electrode group to the adsorption area of ​​the radial cross-section of the adsorption unit is less than 0.9, and optionally, the ratio of the discharge area of ​​the front discharge electrode group to the adsorption area of ​​the radial cross-section of the adsorption unit is 0.5 to 0.9.

[0042] Feature 5: The adsorption area of ​​the radial cross-section of the adsorption unit is 0.001 m². 2 ~0.5m 2 In that case, the voltage of the discharge beam is -3kV to -60kV,

[0043] Feature 6: A direct proportional relationship exists between the vertical distance L1 from the free end of the discharge beam to the first end of the adsorption electrode of the adsorption unit and the vertical distance L3 from the discharge beam to the inner wall of the outermost adsorption electrode, given by L1 = (0.7~3) × L3.

[0044] Feature 7: The flow velocity range of the gas flowing through the gas particulate matter purification device and subjected to electric field treatment is 0.2 to 2.0 m / s, and optionally, the flow velocity range of the gas flowing through the gas particulate matter purification device and subjected to electric field treatment is 1 m / s.

[0045] Feature 8: The voltage range of the discharge beam is -3kV to -60kV.

[0046] Feature 9: The thickness of the discharge electrode and / or the adsorption electrode is 0.01 mm to 5 mm.

[0047] Optionally, the thickness of the discharge electrode and / or the adsorption electrode is 1.0 to 5 mm, or the thickness is 0.2 to 3 mm.

[0048] Feature 10: The length of the gas flow path is 50 to 200 mm. It possesses at least one of the following characteristics.

[0049] Optionally, the gas particulate matter purification device further comprises a wire mesh device installed in front of the front discharge electrode group,

[0050] The wire mesh device comprises a wire mesh front discharge electrode group and a first wire mesh adsorption unit, wherein the wire mesh front discharge electrode group includes at least one discharge beam electrically connected to one electrode of a DC high-voltage power supply, and the first wire mesh adsorption unit includes a laminated multilayer wire mesh electrically connected to another electrode of the DC high-voltage power supply, of which,

[0051] Along the direction of gas flow, the first wire mesh adsorption unit is located in front of the wire mesh front discharge electrode group and at a distance from the wire mesh front discharge electrode group, or the first wire mesh adsorption unit is located behind the wire mesh front discharge electrode group and at a distance from the wire mesh front discharge electrode group, and

[0052] The discharge beam is installed on the surface of the wire mesh front discharge electrode group facing the first wire mesh adsorption unit, and the discharge beam of the wire mesh front discharge electrode group and the multilayer wire mesh of the first wire mesh adsorption unit form an electric field.

[0053] Optionally, the wire mesh device further comprises a second wire mesh adsorption unit, the second wire mesh adsorption unit including a stacked multilayer wire mesh,

[0054] Along the direction of gas flow, the first wire mesh adsorption unit is located on one side of the wire mesh front discharge electrode group, and the second wire mesh adsorption unit is located on the other side of the wire mesh front discharge electrode group, with a distance between the second wire mesh adsorption unit and the wire mesh front discharge electrode group.

[0055] Optionally, the multilayer wire mesh of the second wire mesh adsorption unit is electrically connected to one electrode of a DC high-voltage power supply.

[0056] Optionally, the wire mesh front discharge electrode group includes at least one discharge electrode group, and the discharge electrode group includes a plurality of discharge beams arranged in the circumferential direction, of which,

[0057] If the wire mesh front discharge electrode group includes multiple discharge electrode groups with different radii, the multiple discharge electrode groups are installed coaxially.

[0058] The discharge electrode and / or the adsorption electrode may be optionally made of a metallic material or a non-metallic conductive material, of which,

[0059] The non-metallic conductive material includes at least one of graphite, graphene, carbon nanotubes, carbon 60, carbon fiber, conductive carbon black, amorphous carbon, or ion-conductive ceramics, or a composite material containing at least one of graphite, graphene, carbon nanotubes, carbon 60, carbon fiber wire, conductive carbon black, amorphous carbon, or ion-conductive ceramics, or the metallic material includes stainless steel.

[0060] Optionally, the gas particulate matter purification device further comprises an air equalization unit, and the gas passes sequentially through the air equalization unit, the front discharge electrode group, and the adsorption unit along the direction of gas flow.

[0061] According to a second aspect of the present invention, an indoor gas treatment system is provided which includes a partition separating the indoor and outdoor areas, wherein an airflow passage is provided in the partition, and a gas particulate matter purification device according to any one of the above claims is provided within the airflow passage, and among these,

[0062] The outside air passes through the gas particulate matter purification device in the partition and enters the room, or

[0063] The air inside the room passes through the gas particulate matter purification device in the partition and enters the outside of the room.

[0064] According to a third aspect of the present invention, a transportation gas treatment system is provided comprising an internal air conditioning circulation duct and an external air conditioning circulation duct, wherein the internal air conditioning circulation duct and / or the external air conditioning circulation duct are provided with a gas particulate matter purification device as described in any one of the above claims.

[0065] A fourth aspect of the present invention provides a mask system comprising a mask, a gas duct, and a gas particulate matter purification device described in any one of the above, wherein the gas particulate matter purification device is in fluid communication with the mask via the gas duct, and among these,

[0066] The purified gas treated by the gas particulate matter purification device is sent to a person's mouth and nose via the gas duct and the mask, or

[0067] The gas exhaled from a person's mouth and nose first passes through the mask and gas duct, and then is treated by the gas particulate matter purification device before being released into the air.

[0068] According to a fifth aspect of the present invention, an exhaust gas treatment system is provided which includes a gas particulate matter purification device as described in any one of the above claims,

[0069] The exhaust gas includes one of the following: cooking oil fumes, processing equipment exhaust gas, industrial exhaust gas, automobile exhaust gas, and boiler exhaust gas.

[0070] According to a sixth aspect of the present invention, a table is provided that is equipped with a gas particulate matter purification device as described in any one of the above claims.

[0071] According to a seventh aspect of the present invention, a system for producing water from air is provided, comprising a gas particulate matter purification device and a water production device as described in any one of the above-mentioned items,

[0072] First, the particulate matter in the air is adsorbed and purified using the gas particulate matter purification device, and then water is produced from the purified air using the water production device.

[0073] According to an eighth aspect of the present invention, a front discharge electrode group used for discharge after voltage application is provided, the front discharge electrode group includes at least one discharge beam connected to a DC power supply, the discharge beam includes a plurality of metal wires and / or conductive nonmetal wires.

[0074] Furthermore, in the discharge electrode group provided by the present invention, the discharge beam includes n metal wires and / or conductive nonmetallic wires, where n is 0.1 million or more.

[0075] Furthermore, in the discharge electrode group provided by the present invention, the diameter range of the metal wire is 0.1 to 100 μm, or the diameter range of the conductive nonmetallic wire is 0.1 to 100 μm.

[0076] Furthermore, in the discharge electrode group provided by the present invention, the discharge beam comprises 1 to 200,000 metal wires and / or conductive nonmetallic wires, preferably 1 to 80,000 metal wires and / or conductive nonmetallic wires.

[0077] Furthermore, in the discharge electrode group provided by the present invention, the metal wire includes at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, and nickel alloy wire, and preferably the single fiber diameter range of the stainless steel fiber wire is 5 to 100 μm.

[0078] Furthermore, in the discharge electrode group provided by the present invention, the conductive nonmetallic wire is a carbon fiber wire, and the single fiber diameter range of the carbon fiber wire is 5 to 100 μm.

[0079] Furthermore, in the discharge electrode group provided by the present invention, the front discharge electrode group includes at least one discharge electrode group, the discharge electrode group includes a plurality of discharge beams arranged in the circumferential direction, and preferably the front discharge electrode group includes a plurality of discharge electrode groups with different radii and arranged coaxially.

[0080] Furthermore, in the discharge electrode group provided by the present invention, the front discharge electrode group includes one of the discharge electrode groups.

[0081] Furthermore, in the discharge electrode group provided by the present invention, the extension lines of the plurality of discharge beams arranged circumferentially in the discharge electrode group form an angle with the axis of the discharge electrode group, and preferably the angle is 10 to 85°.

[0082] Furthermore, in the discharge electrode group provided by the present invention, the plurality of discharge electrodes arranged in the circumferential direction in the discharge electrode group are arranged along the axial direction of the discharge electrode group.

[0083] Furthermore, in the discharge electrode group provided by the present invention, the voltage range of the front discharge electrode group is -3kV to -60kV.

[0084] Furthermore, in the discharge electrode group provided by the present invention, the discharge beam includes a plurality of metal wires and / or nonmetal wires, where one end of each of the plurality of metal wires and / or nonmetal wires is fixed together to form a fixed end, and the other end is a free end.

[0085] Furthermore, in the discharge electrode group provided by the present invention, the front discharge electrode group further comprises a support plate, and the fixed end of the discharge beam is fixed to the support plate.

[0086] According to a ninth aspect of the present invention, a gas particle purifier is provided comprising a front discharge electrode group and an adsorption unit, wherein the front discharge electrode group is the same as the front discharge electrode group described above, and is located in front of the adsorption unit along the direction of gas flow, with a distance between the front discharge electrode group and the adsorption unit, and the discharge beam in the front discharge electrode group charges at least some of the particulate matter in the flowing gas by discharge, and the gas with at least some of the particulate matter charged enters the adsorption unit and is subjected to electrostatic particle removal treatment.

[0087] According to a tenth aspect of the present invention, a gas particulate matter purification apparatus is provided for adsorbing and purifying particulate matter in a gas, and the gas particulate matter purification apparatus is

[0088] A discharge unit including at least one discharge beam electrically connected to one electrode of a DC high-voltage power supply,

[0089] A first wire mesh adsorption unit, which includes a stacked multilayer wire mesh, is electrically connected to another electrode of the DC high-voltage power supply. Equipped with,

[0090] Along the direction of gas flow, the first wire mesh adsorption unit is located in front of the discharge unit and at a distance from the discharge unit, or the first wire mesh adsorption unit is located behind the discharge unit and at a distance from the discharge unit.

[0091] The discharge beam is installed on the side of the discharge unit facing the first wire mesh adsorption unit,

[0092] The discharge beam of the discharge unit and the multilayer wire mesh of the first wire mesh adsorption unit form an electric field.

[0093] Furthermore, in the gas particulate matter purification device provided by the present invention, the first wire mesh adsorption unit further comprises a non-metallic rod installed on the end face of the multilayer wire mesh facing the discharge unit, of which,

[0094] The non-metallic rod induces a high voltage from the discharge beam, forming an induced electric field with the multilayer wire mesh.

[0095] Furthermore, in the gas particulate matter purification device provided by the present invention, the two first wire mesh adsorption units are equipped with non-metallic rods, the multilayer wire mesh includes a first end face facing the discharge unit and a second end face opposite to the discharge unit, the non-metallic rods are installed on the first end face of the multilayer wire mesh, and among them,

[0096] The non-metallic rod induces a high voltage in the discharge electrode, forming an induced electric field with the multilayer wire mesh.

[0097] Preferably, the non-metallic rod is made of nylon material.

[0098] Furthermore, in the gas particulate matter purification device provided by the present invention, the gas particulate matter purification device further comprises a second wire mesh adsorption unit including a stacked multilayer wire mesh,

[0099] Along the direction of gas flow, the first wire mesh adsorption unit is located on one side of the discharge unit, and the second wire mesh adsorption unit is located on the other side of the discharge unit, with a distance between the second wire mesh adsorption unit and the discharge unit.

[0100] Furthermore, in the gas particulate matter purification device provided by the present invention, the multilayer wire mesh of the second wire mesh adsorption unit is electrically connected to one electrode of the DC high-voltage power supply.

[0101] Furthermore, in the gas particulate matter purification device provided by the present invention, the multilayer wire mesh of the second wire mesh adsorption unit is not energized and can physically adsorb particulate matter in the gas.

[0102] Furthermore, in the gas particulate matter purification device provided by the present invention, the discharge beam includes a plurality of metal wires and / or conductive nonmetal wires.

[0103] Furthermore, the discharge beam includes n metal wires and / or conductive nonmetallic wires, where n is 0.1 million or more.

[0104] Furthermore, in the gas particulate matter purification device provided by the present invention, the discharge beam is

[0105] (1) The discharge beam includes n metal wires and / or conductive nonmetallic wires, of which n is 0.1 million or more.

[0106] (2) The diameter range of the metal wire is 0.1 to 100 μm.

[0107] (3) The diameter range of the conductive nonmetallic wire is 0.1 to 100 μm. It satisfies one or more of the following conditions.

[0108] Furthermore, in the gas particulate matter purification device provided by the present invention, the discharge beam is

[0109] (1) The discharge beam comprises 0.5 to 200,000 metal wires and / or conductive nonmetallic wires, preferably 0.5 to 80,000 metal wires and / or conductive nonmetallic wires, or the discharge beam comprises 10,000 to 80,000 metal wires and / or conductive nonmetallic wires.

[0110] (2) The diameter range of the metal wire is 5 to 100 μm.

[0111] (3) The diameter range of the conductive nonmetallic wire is 5 to 100 μm. It satisfies one or two of the following conditions.

[0112] Furthermore, in the gas particulate matter purification device provided by the present invention, the metal wire includes a stainless steel fiber wire, and more preferably, the single fiber diameter range of the stainless steel fiber wire is 5 to 100 μm.

[0113] Furthermore, in the gas particulate matter purification device provided by the present invention, the conductive nonmetallic wire is a carbon fiber wire, and the single fiber diameter range of the carbon fiber wire is 5 to 100 μm.

[0114] Furthermore, in the gas particulate matter purification apparatus provided by the present invention, the discharge unit includes at least one discharge electrode group, the discharge electrode group includes a plurality of discharge beams arranged in the circumferential direction, and preferably the discharge unit includes a plurality of discharge electrode groups with different radii and arranged coaxially. The discharge electrode group includes a plurality of discharge beams, which improves corona discharge efficiency compared to a single discharge beam, and simultaneously, by arranging a plurality of discharge beams in the circumferential direction, the discharge becomes more uniform, contributing to improved particulate matter removal efficiency in the subsequent stage.

[0115] Furthermore, in the gas particulate matter purification apparatus provided by the present invention, the extension lines of the multiple discharge beams installed circumferentially in the discharge electrode group form an angle with the axis of the discharge electrode group, preferably the angle is 10 to 85°. In the present invention, the discharge beams in the circumferentially installed discharge electrode group discharge at an inclination with respect to the axial direction, thereby further improving the discharge efficiency and, consequently, improving the efficiency of subsequent particulate matter removal.

[0116] Furthermore, in the gas particulate matter purification device provided by the present invention, the multiple discharge beams arranged circumferentially in the discharge electrode group are arranged along the axial direction of the discharge electrode group.

[0117] Furthermore, the gas particulate matter purification device provided by the present invention is characterized in that the voltage range of the discharge unit is -3kV to -60kV.

[0118] Furthermore, in the gas particulate matter purification device provided by the present invention, the discharge beam includes a plurality of metal wires and / or nonmetal wires, one end of the plurality of metal wires and / or nonmetal wires is fixed together to form a fixed end, and the other end is a free end, the free end facing the first wire mesh adsorption unit.

[0119] Furthermore, in the gas particulate matter purification device provided by the present invention, the discharge unit further comprises a support plate, and the fixed end of the discharge beam is fixed to the support plate.

[0120] According to an eleventh aspect of the present invention, an exhaust gas treatment device for an internal combustion engine is provided that includes a DPF device and achieves extended lifespan and reduced cost, further comprising a coarse particle filter device, wherein the coarse particle filter device is in fluid communication with the DPF device along the gas flow direction and is located upstream of the DPF device, and the coarse particle filter device is the gas particulate matter purification device described above.

[0121] Furthermore, the exhaust gas treatment device for an internal combustion engine provided by the present invention further comprises a catalytic oxidation device, the catalytic oxidation device is located between the coarse particulate filter device and the DPF device, and the catalytic oxidation device is in fluid communication with the coarse particulate filter device and the DPF device, respectively.

[0122] Furthermore, the exhaust gas treatment device for an internal combustion engine provided by the present invention further comprises a denitrification device, the denitrification device performs denitrification treatment on the exhaust gas treated by the DPF device.

[0123] In this invention, the gas includes one of the following: air, engine exhaust gas, cooking oil fumes, processing equipment exhaust gas, industrial exhaust gas, and boiler exhaust gas.

[0124] The beneficial effects of the present invention are as follows. In the gas particulate matter purification device provided by the first aspect of the present invention, a front discharge electrode group is located in front of the adsorption unit along the gas flow direction and is at a distance from the adsorption unit, the front discharge electrode group includes at least one front discharge electrode connected to a DC high voltage power supply, the adsorption unit includes at least one adsorption electrode and at least one discharge electrode, and the discharge electrode and adsorption electrode form an adsorption electric field. The discharge beam in the front discharge electrode group charges the particulate matter in the gas by discharge, improving the charging efficiency of the particulate matter. The charged particulate matter enters the subsequent adsorption electric field and is subjected to electric field treatment, causing the charged particulate matter in the gas to be adsorbed onto the adsorption electrode. The particulate matter includes, but is not limited to, contaminants such as viruses, bacteria, and radioactive aerosols, and through electric field treatment, particulate matter and aerosols containing viruses, bacteria, and radioactive materials in the gas are removed, obtaining a sterile, radiation-free, virus-free clean gas and achieving a gas purification effect.

[0125] Furthermore, the gas particle purifier and gas treatment system provided in the first aspect of the present invention can efficiently adsorb nano-sized particulate matter, including viruses and bacteria ranging from tens of nanometers to hundreds of nanometers in size.

[0126] The gas-based particulate matter purification system provided by the present invention can remove micron-sized and nano-sized particulate matter as the gas passes through the gas-based particulate matter purification device. The removal effect for particulate matter larger than 100 nanometers reaches 99.99% or more, and after the gas is purified by the gas-based particulate matter purification device, a sterile, radiation-free, and virus-free clean gas can be obtained.

[0127] The front discharge electrode provided in the eighth aspect of the present invention has the following technical effects.

[0128] (1) The discharge beam in the front discharge electrode contains thousands to tens of thousands of metal wires and / or conductive non-metallic wires, and the discharge beam is fixed to a support plate and has a brush-like shape. The discharge beam employs corona discharge, and the tip of each free end of the fiber wire becomes the discharge point, thereby significantly improving the discharge effect, increasing the charging efficiency of particulate matter in the gas, and effectively reducing ozone generation to almost zero.

[0129] (2) The front discharge electrode group and a downstream adsorption unit (e.g., the adsorption unit of an electrostatic dust removal device) are combined to purify particulate matter in the gas. The discharge beam of the front discharge electrode group is used for discharge after voltage is applied, and charges at least some of the particulate matter in the flowing gas. The gas, with at least some of the particulate matter charged, enters the adsorption unit and is subjected to electrostatic particle removal treatment. The charged particulate matter enters the downstream adsorption field and is subjected to electric field treatment, causing the charged particulate matter in the gas to be adsorbed onto the adsorption electrodes. The particulate matter includes, but is not limited to, contaminants such as viruses, bacteria, and radioactive aerosols. Through electric field treatment, particulate matter and aerosols containing viruses, bacteria, and radioactive materials in the gas are removed, resulting in a sterile, radiation-free, and virus-free clean gas, thus achieving a gas purification effect.

[0130] (3) The front discharge electrode group provided by the present invention has the following further advantages:

[0131] Compared to purifying gas particulate matter with a single electrode rod or electrode wire and an adsorption unit under the same purification efficiency requirements, when the front discharge electrode group of the present invention is combined with the same adsorption unit, the voltage that needs to be applied to the front discharge electrode group of the present invention is much smaller than the voltage required for a single electrode rod or electrode wire. This results in advantages such as lower energy consumption and lower costs, and effectively reduces ozone generation to almost zero.

[0132] The gas particle purifier provided in the ninth aspect of the present invention can adsorb particulate matter of 30 nm or larger, and its removal effect on particulate matter of 100 nanometers or larger reaches 99.99% or more, thus having the effect of killing bacteria and virus-level particulate matter in gas.

[0133] The gas particulate matter purification apparatus provided in the tenth aspect of the present invention has the following technical effects.

[0134] (1) The gas particulate matter purification device provided by the present invention can efficiently adsorb large particulate matter in gas, such as micron-sized particulate matter (large particulate matter includes dust and water vapor), and the removal efficiency reaches at least 70-80%.

[0135] (2) The discharge beam in the front discharge electrode group provided by the present invention comprises several thousand to tens of thousands of metal wires and / or conductive nonmetallic wires, and the discharge beam is fixed to a support plate and has a brush-like shape. The discharge beam employs corona discharge, and the tip of each free end of the fiber wire becomes the discharge point, thereby significantly improving the discharge effect, increasing the charging efficiency of particulate matter in the gas, and effectively reducing ozone generation to almost zero.

[0136] (3) Tests have shown that, under the same purification efficiency requirements, when the discharge unit of the present invention is combined with the same wire mesh adsorption unit, the voltage that needs to be applied to the discharge unit of the present invention is smaller than the voltage required for a single electrode rod or electrode wire, resulting in the advantages of lower energy consumption and lower cost.

[0137] (4) The gas particulate matter purification device provided by the present invention can remove particulate matter from gas, and can similarly effectively remove water vapor when the gas contains water vapor, without causing a short circuit. This is because the water vapor in the gas is adsorbed onto the multilayer wire mesh, and a certain distance exists between the multilayer wire mesh and the discharge beam.

[0138] An exhaust gas treatment device for an internal combustion engine provided in the eleventh aspect of the present invention performs front coarse particle filtration before the existing DPF treatment, removing a portion of particulate matter larger than micron size using a front coarse particle filter device. On the one hand, the resistance of the DPF device is reduced, and back pressure can be reduced. On the other hand, the service life of the DPF can be extended and costs can be reduced. Specifically, in existing exhaust treatment devices, the DPF device needs to be replaced every six months, but in the present invention, by treating with a front coarse particle filter device before entering the DPF device, the replacement time for the DPF device can be extended by more than three times, i.e., to more than 18 months, thereby reducing costs, saving fuel consumption, and reducing the emission of pollutants. Next, by using the manganese oxide catalyst provided in Chinese patent CN116809054A in the catalytic oxidation device of the present invention to perform catalytic oxidation treatment, the DOC treatment process of existing technology can be replaced, and costs can be reduced. [Brief explanation of the drawing]

[0139] [Figure 1] This is a schematic cross-sectional view of a gas particulate matter purification device according to Embodiment 1 of the present invention. [Figure 2] This is a schematic perspective view of the adsorption unit of the first embodiment according to Example 1 of the present invention. [Figure 3] This is a schematic cross-sectional view of the adsorption unit of the first embodiment according to Embodiment 1 of the present invention, along the direction perpendicular to the airflow direction. [Figure 4] This is a schematic perspective view of the adsorption unit of the second embodiment according to Example 1 of the present invention. [Figure 5] This is a schematic perspective view of the adsorption unit of the third embodiment according to Example 1 of the present invention. [Figure 6] Figure 5 is a schematic perspective view of the adsorption electrode section in the adsorption unit. [Figure 7] Figure 5 is a schematic perspective view of the discharge electrode section in the adsorption unit. [Figure 8] This is a schematic diagram of the front discharge electrode group in Embodiment 2 of the present invention. [Figure 9]This is a schematic diagram of the discharge beam in Embodiment 3 of the present invention. [Figure 10] This is a schematic diagram of the discharge beam in Embodiment 4 of the present invention. [Figure 11] This is a schematic diagram 1 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 12] This is a schematic diagram 2 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 13] This is a schematic diagram 3 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 14] This is a schematic diagram 4 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 15] This is a schematic diagram 5 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 16] This is a schematic diagram 6 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 17] This is a schematic diagram 7 of the structure of a wire mesh device according to Embodiment 5 of the present invention. [Figure 18] This is a schematic diagram of the structure of a gas processor according to Embodiment 7 of the present invention. [Figure 19] This is a schematic diagram of the structure of another gas processor according to Embodiment 7 of the present invention. [Figure 20] This is a schematic diagram of a mask system for supplying purifying gas to the mouth and nose according to Embodiment 10 of the present invention. [Figure 21] Figure 20 is a schematic side view. [Figure 22] This is a schematic diagram of an exhaust gas treatment device for an internal combustion engine according to Embodiment 14 of the present invention. [Modes for carrying out the invention]

[0140] Preferred embodiments of the present invention will be described in detail below with reference to the drawings. This will allow for a clearer understanding of the object, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings do not limit the scope of the present invention, but are intended to illustrate the substantial spirit of the technical proposal of the present invention.

[0141] The following description includes specific details for the purpose of illustrating the various embodiments disclosed, thereby enabling a thorough understanding of the various embodiments. However, those skilled in the art will recognize that the embodiments can be practiced without one or more of these details. In other cases, well-known devices, structures, and technologies related to this application may not be described in detail, in order to avoid unnecessarily obscuring the description of the embodiments.

[0142] Throughout the specification, the phrase "one embodiment" or "one example" means that the specific features, structures, or properties described in relation to that embodiment are included in at least one embodiment. Therefore, the phrases "in one embodiment" or "in one example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment. Furthermore, specific features, structures, or properties may be combined in any way in one or more embodiments.

[0143] In the following description, many directional terms are used to clearly illustrate the structure and operation method of the present invention. However, terms such as "front," "back," "left," "right," "outside," "inside," "outward," "inward," "up," and "down" should be understood as terms of convenience and not as restrictive terms.

[0144] Furthermore, terms such as "horizontal," "vertical," and "suspended" do not require that a component be perfectly horizontal or suspended; they may be slightly tilted. For example, "horizontal" simply means that its orientation is more horizontal than "vertical," and does not mean that the structure must be perfectly horizontal; it may be slightly tilted.

[0145] It should be noted that, in the description of this application, unless otherwise explicitly stated or limited, the terms “installation,” “mounting,” “connection,” and “connection” should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or an integrated connection. It may be a mechanical connection or an electrical connection. It may be a direct connection, an indirect connection via an intermediate medium, or internal communication between two parts. Those skilled in the art will understand the specific meaning of the above terms in this application depending on the specific circumstances.

[0146] Example 1

[0147] A first embodiment of the present invention provides a gas-in-particulate matter purification device capable of efficiently adsorbing nano-sized particulate matter, which includes not only dust but also viruses and bacteria ranging from tens to hundreds of nanometers in size. Referring to Figure 1, the gas-in-particulate matter purification device 200 comprises a front discharge electrode group 220 and an adsorption unit 230. Along the direction of gas flow (direction of arrow A), the front discharge electrode group 220 is located in front of the adsorption unit 230 and at a distance from the adsorption unit 230, and the front discharge electrode group 220 includes at least one discharge beam 221 connected to a DC high-voltage power supply.

[0148] With this design, the discharge beam 221 in the front discharge electrode group 220 charges particulate matter in the gas by discharge, improving the charging efficiency of the particulate matter. The charged particulate matter enters the downstream adsorption unit 230, where it is purified and adsorbed onto the adsorption electrodes. The particulate matter contains, but is not limited to, contaminants such as viruses, bacteria, and radioactive aerosols. Through the purification process, particulate matter and aerosols containing viruses, bacteria, and radioactive materials are removed from the gas, resulting in a sterile, radiation-free, and virus-free clean gas, thus achieving a gas purification effect.

[0149] In one embodiment of the present invention, referring to Figure 1, the adsorption unit 230 includes at least one grounded adsorption electrode 231 and at least one discharge electrode 232 for forming an adsorption electric field.

[0150] With the design of the present invention, a voltage is applied between the adsorption electrode and the discharge electrode, resulting in more stable adsorption performance of the adsorption unit.

[0151] In one embodiment of the present invention, referring to Figure 1, the end of the adsorption electrode 231 closest to the front discharge electrode group 220 protruded further forward than the end of the discharge electrode 232 closest to the front discharge electrode group. Alternatively, the end of the adsorption electrode 231 closest to the front discharge electrode group 220 and the end of the discharge electrode 232 closest to the front discharge electrode group 220 were located on the same plane perpendicular to the airflow direction; that is, the end of the adsorption electrode 231 closest to the front discharge electrode group 220 and the end of the discharge electrode 232 closest to the front discharge electrode group 220 were on the same plane.

[0152] With this design, if the end of the discharge electrode closest to the front discharge electrode group protrudes further forward than the end of the adsorption electrode, and the discharge beam is a negative high voltage, the discharge electrode induces the high voltage of the discharge beam, forming a negative potential induced voltage, and an induced electric field is formed between the discharge electrode and the adsorption electrode. Therefore, by making the end of the adsorption electrode closest to the front discharge electrode group protrude relative to the end of the discharge electrode 232 closest to the front discharge electrode group, or by arranging them on the same plane, it is possible to control the situation so that there is no induced electric field between the discharge electrode and the adsorption electrode, or so weak an induced electric field is generated that does not adversely affect the adsorption electric field, thereby making it easier to adjust the distance between the adsorption unit and the discharge unit.

[0153] In one embodiment of the present invention, referring to FIG. 1, the discharge electrode 232 includes a first end of the discharge electrode close to the front discharge electrode group 220, the adsorption electrode 231 includes a first end of the adsorption electrode close to the front discharge electrode group 220, and the first end of the adsorption electrode is located in front of the first end of the discharge electrode. That is, along the air flow direction, first, it passes through the front discharge electrode group 220, then through the first end of the adsorption electrode, and then through the first end of the discharge electrode. It can also be understood that the end of the adsorption electrode 231 close to the discharge beam 221 protrudes forward more than the end of the discharge electrode 232.

[0154] Specifically, referring to FIG. 1, the distance range between the orthographic projection of the first end of the discharge electrode on the adsorption electrode 231 and the first end of the adsorption electrode is 10 cm or less. If this distance is L2, then 0 < L2 ≤ 10 cm. Preferably, referring to FIG. 1, the distance range between the orthographic projection of the first end of the discharge electrode on the adsorption electrode 23 and the first end of the adsorption electrode is 3 cm or less. If this distance is L2, then 0 < L2 ≤ 3 cm. Typical distances L2 are 0.5 cm, 1 cm, 2 cm, 3 cm, 4 cm, 5 cm, 6 cm, 7 cm, 8 cm, 9 cm, or 10 cm, but are not limited thereto.

[0155] In one embodiment of the present invention, the particulate matter purification device in the gas includes power source 1 and power source 2. Both ends of power source 1 are electrically connected to the discharge beam and the adsorption electrode respectively, and both ends of power source 2 are electrically connected to the discharge electrode and the adsorption electrode respectively. Among them, the adsorption electrode is grounded. This can also be understood as the discharge beam being electrically connected to the negative electrode of power source 1, the adsorption electrode being electrically connected to the positive electrode of power source 1, the discharge electrode being electrically connected to the negative electrode of power source 2, and the adsorption electrode also being electrically connected to the positive electrode of power source 2. Among them, the adsorption electrode is grounded.

[0156] In one embodiment of the present invention, referring to Figure 1, the adsorption electrode 231 and the discharge electrode 232 are both hollow tubes of different diameters, the discharge electrode 232 and the adsorption electrode 231 are fitted coaxially, and the discharge electrode 232 and the adsorption electrode 231 are alternately installed in the direction from the axis toward the outer circumference, the vertical distance between the discharge electrode 232 and the adsorption electrode 231 is the same, and a gas channel is formed between the discharge electrode 232 and the adsorption electrode 231 for passing gas to perform electric field processing.

[0157] Specifically, referring to Figures 1 to 3, the cross-section of the hollow tube could be polygonal, and referring to Figure 4, the cross-section of the hollow tube could be circular.

[0158] For example, referring to Figure 4, the adsorption unit 100 includes a discharge electrode group and an adsorption electrode group for forming an electric field. In this embodiment, the discharge electrode group includes a discharge electrode 11 and a discharge electrode 12, and the adsorption electrode group includes an adsorption electrode 21, an adsorption electrode 22, and an adsorption electrode 23. Both the discharge electrode group and the adsorption electrode group include cylinders of different diameters, with multiple cylinders coaxially fitted and alternately arranged inside and outside, sequentially from inside to outside as adsorption electrode 21, discharge electrode 11, adsorption electrode 22, discharge electrode 12, and adsorption electrode 23. The distances between adsorption electrode 21, discharge electrode 11, adsorption electrode 22, discharge electrode 12, and adsorption electrode 23 were the same. In other words, adjacent cylindrical walls were different electrodes, ensuring that the distances between each cylindrical electrode were highly consistent. A gas channel 31 was formed between the adsorption electrode 21 and the discharge electrode 11, a gas channel 32 was formed between the discharge electrode 11 and the adsorption electrode 22, a gas channel 33 was formed between the adsorption electrode 22 and the discharge electrode 12, and a gas channel 34 was formed between the discharge electrode 12 and the adsorption electrode 23.

[0159] Preferably, the polygon was a hexagon or a rectangle, preferably a regular hexagon and a square.

[0160] Specifically, referring to Figures 1 to 3, multiple discharge electrodes 232 were electrically connected to form a discharge electrode, and multiple adsorption electrodes 231 were electrically connected to form an adsorption electrode. For example, multiple first conductive bars 2321 were used to electrically connect multiple discharge electrodes 232, and multiple second conductive bars 2311 were used to electrically connect multiple adsorption electrodes 231. Both the first conductive bars 2321 and the second conductive bars 2311 were installed perpendicular to the axis of the cylinder, and both the first conductive bars 2321 and the second conductive bars 2311 were made of conductive material. One end of the first conductive bar 2321 was connected to the outer wall of the innermost discharge electrode, and the other end was connected to the inner wall of the outermost discharge electrode. One end of the second conductive bar 2311 was connected to the outer wall of the innermost adsorption electrode, and the other end was connected to the inner wall of the outermost adsorption electrode, and the outermost adsorption electrode was grounded.

[0161] In one embodiment of the present invention, referring to Figure 1, the hollow tube with the smallest diameter in the adsorption unit 230 is an internal adsorption electrode, and the gas particulate matter purification device 200 further comprises a power supply D' installed inside the internal adsorption electrode. It was understood that the hollow tube with the smallest diameter in the adsorption unit may also be an internal discharge electrode, and the power supply D' may be installed inside the internal discharge electrode.

[0162] This design allows the power supply D' (which may be, for example, a rechargeable battery) to be cleverly placed inside the internal discharge electrode or the hollow tube of the internal discharge electrode, thereby reducing the overall volume of the device, decreasing material usage, and saving costs.

[0163] In one embodiment of the present invention, referring to Figures 5 to 7, both the adsorption electrode 15 and the discharge electrode 25 are flat plates, the discharge electrode 25 and the adsorption electrode 15 are installed alternately in parallel, the distance between the discharge electrode 25 and the adsorption electrode 15 is the same, and a gas channel is formed between the discharge electrode 25 and the adsorption electrode 15 for passing gas in order to perform electric field processing.

[0164] Specifically, as shown in Figure 5, the adsorption unit comprised an adsorption electrode section 10 and a discharge electrode section 20. As shown in Figure 6, the adsorption electrode section 10 had a first frame 14 and a plurality of parallel-mounted adsorption electrodes 15 connected to the first frame 14. The first frame 14 was a rectangular housing including a first upper cover plate, a first lower cover plate, a first left side plate, and a first right side plate. Both ends of the adsorption electrode 15 were connected to the first upper cover plate and the first lower cover plate, respectively. The adsorption electrode 15 included a sequentially connected upper end 151, middle end 152, and lower end 153. The widths of the upper end 151 and lower end 153 were both smaller than the width of the middle end 152 of the adsorption electrode, and in this embodiment, the widths of the first upper cover plate and the first lower cover plate were the same as the width of the middle end 152. As shown in Figure 7, the discharge electrode section 20 had a second frame 24 and a plurality of parallel-mounted discharge electrodes 25 connected to the second frame 24. The second frame was a rectangular housing including a second upper cover plate, a second lower cover plate, a second left side plate, and a second right side plate. Both ends of the discharge electrode 25 were connected to the second upper cover plate and the second lower cover plate, respectively. In this embodiment, the widths of the second upper cover plate and the second lower cover plate were smaller than the width of the discharge electrode 25.

[0165] Specifically, referring to Figures 5 to 7, at least a portion of the discharge electrode section 20 is installed within the adsorption electrode section 10, both the adsorption electrode 15 and the discharge electrode 25 are flat plates, multiple adsorption electrodes 15 and multiple discharge electrodes 25 are installed alternately in parallel, and the distance between the adsorption electrodes 15 and the discharge electrodes 25 is the same.

[0166] Specifically, referring to Figures 5 to 7, a gap equal to the distance between the adsorption electrode and the discharge electrode existed between the first frame 14 and the second frame 24.

[0167] In one embodiment of the present invention, referring to Figure 1, the outermost adsorption electrode 231 in the adsorption unit 230 is an external adsorption electrode, one end of the external adsorption electrode is extended to form an extension portion 2312, and the front discharge electrode group 220 is installed within the extension portion 2312.

[0168] Specifically, referring to Figure 1, for example, the adsorption electrode 231 and the discharge electrode 232 are both hollow tubes of different diameters, the discharge electrode 232 and the adsorption electrode 231 are fitted coaxially, and the discharge electrode 232 and the adsorption electrode 231 are alternately installed in the direction from the axis toward the outer circumference. The hollow tube with the largest diameter in the adsorption unit 230 is the outer adsorption electrode, and one end of the outer adsorption electrode closest to the front discharge electrode group 230 is extended to form an extension portion 2312, and the front discharge electrode group 220 is placed inside the extension portion 2312, that is, the extension portion 2312 is fitted outside the front discharge electrode group 220 at a certain distance.

[0169] Specifically, referring to Figures 5 to 7, for example, both the adsorption electrode 15 and the discharge electrode 25 are flat plates, the discharge electrode 25 and the adsorption electrode 15 are arranged alternately in parallel, the outermost layer of the adsorption unit 230 is the outer adsorption electrode, that is, both sides of the outermost layer are outer adsorption electrodes, one end of each of the two outer adsorption electrodes closest to the front discharge electrode group 230 is extended to form an extension, and the front discharge electrode group is positioned between the extensions of the two outer adsorption electrodes.

[0170] This design allows the external adsorption electrode to be used as the outer shell of the front discharge electrode group 220 and the adsorption unit 230, saving material and simplifying the manufacturing process.

[0171] Preferably, referring to Figure 1, the vertical distance between the front discharge electrode group 220 and the extension 2312 was 5 to 150 mm. Preferably, referring to Figure 1, the vertical distance between the front discharge electrode group 220 and the extension 2312 was 5 to 20 mm. Typical vertical distances were, but were not limited to, 5 cm, 10 cm, 15 cm, 20 cm, 30 cm, 40 cm, 50 cm, 60 cm, 70 cm, 80 cm, 90 cm, 100 cm, 110 cm, 120 cm, 130 cm, 140 cm, or 150 cm.

[0172] In one embodiment of the present invention, referring to Figure 1, an insulating layer (not shown) is provided on the inner wall of the extension 2312, and the front discharge electrode group 220 is installed within the insulating layer, with a distance between the insulating layer and the front discharge electrode group 220.

[0173] Specifically, referring to Figure 1, for example, the adsorption electrode 231 and the discharge electrode 232 are both hollow tubes of different diameters, the discharge electrode 232 and the adsorption electrode 231 are fitted coaxially, and the discharge electrode 232 and the adsorption electrode 231 are alternately installed in the direction from the axis toward the outer circumference. The hollow tube with the largest diameter in the adsorption unit 230 is the outer adsorption electrode, and one end of the outer adsorption electrode closest to the front discharge electrode group 230 is extended to form an extension 2312, at least a part of the insulating layer is fitted to the inner wall of the extension 2312 of the outer adsorption electrode, and the front discharge electrode group 220 is placed within the insulating layer, that is, the insulating layer is fitted outside the front discharge electrode group 220 at a certain distance.

[0174] Specifically, referring to Figures 5 to 7, for example, both the adsorption electrode 15 and the discharge electrode 25 are flat plates, the discharge electrode 25 and the adsorption electrode 15 are arranged alternately in parallel, the outermost layer in the adsorption unit 230 is the outer adsorption electrode, that is, both sides of the outermost layer are outer adsorption electrodes, one end of each of the two outer adsorption electrodes closest to the front discharge electrode group 230 is extended to form an extension, at least a part of the insulating layer is installed on the inner wall of the extensions 2312 of the two outer adsorption electrodes, and the front discharge electrode group is positioned between the two insulating layers.

[0175] This design allowed the insulating layer to be made of plastic and connected to the inner wall of the extension 2312 of the external adsorption electrode. By placing the insulating layer outside the front discharge electrode group 220, the discharge of the front discharge electrode group 220 was directed only to the adsorption unit 230, and discharge to the surrounding area was avoided.

[0176] Preferably, referring to Figure 1, the vertical distance between the front discharge electrode group 220 and the insulating layer was 5 to 150 mm. Preferably, referring to Figure 1, the vertical distance between the front discharge electrode group 220 and the insulating layer was 5 to 20 mm. Typical vertical distances were, but were not limited to, 5 cm, 10 cm, 15 cm, 20 cm, 30 cm, 40 cm, 50 cm, 60 cm, 70 cm, 80 cm, 90 cm, 100 cm, 110 cm, 120 cm, 130 cm, 140 cm, or 150 cm.

[0177] The vertical distance between the front discharge electrode group and the extension refers to the vertical distance from the outermost discharge beam in the front discharge electrode group to the extension, while the distance between the insulating layer and the front discharge electrode group refers to the vertical distance from the outermost discharge beam in the front discharge electrode group to the insulating layer.

[0178] In one embodiment of the present invention, referring to Figure 1, the distance range between the discharge electrode 232 and the adsorption electrode 231 was 30 mm or less, preferably 10 mm or less, preferably 2.5 to 10 mm, or 3 to 6 mm. Typical distances were, but were not limited to, 0.1 mm, 0.25 mm, 0.5 mm, 1 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm.

[0179] The distance between adjacent discharge electrodes 232 and adsorption electrodes 231 was the vertical distance, that is, the inter-electrode distance between the discharge electrode 232 and adsorption electrode 231 in the adsorption unit.

[0180] In one embodiment of the present invention, referring to Figure 1, the voltage range between the discharge electrode 232 and the adsorption electrode 231 was -0.5kV to -12kV, preferably -1kV to -8kV, preferably -1kV to -3kV, and preferably -0.5kV to -3kV. Typical induced voltages were 0.1kV, 0.3kV, 0.5kV, 0.7kV, 1kV, 2kV, 3kV, 4kV, 5kV, 6kV, 7kV, 8kV, 9kV, 10kV, 11kV, or 12kV, but were not limited to these.

[0181] In one embodiment of the present invention, referring to Figure 1, when the distance range between the discharge electrode 232 and the adsorption electrode 231 is 10 mm or less, the voltage range between the adsorption electrode 231 and the discharge electrode is -0.5 to -12 kV, or the voltage range between the adsorption electrode 231 and the discharge electrode is -0.5 to -1.2 kV.

[0182] Furthermore, when the vertical distance between adjacent discharge electrodes 232 and adsorption electrodes 231 was 10 mm or less, i.e., when the inter-electrode distance between discharge electrodes 232 and adsorption electrodes 231 in the adsorption unit was 10 mm or less, the voltage range between adsorption electrodes 231 and discharge electrodes was -0.5 to -12 kV, or the voltage range between adsorption electrodes 231 and discharge electrodes was -0.5 to -1.2 kV. Among these, the smaller the distance between discharge electrodes 232 and adsorption electrodes 231 in the adsorption unit, the lower the required voltage, and the larger the distance between discharge electrodes 232 and adsorption electrodes 231 in the adsorption unit, the higher the required voltage. However, there was a nonlinear relationship between the distance between discharge electrodes 232 and adsorption electrodes 231 in the adsorption unit and the voltage. For example, when the distance between discharge electrodes 232 and adsorption electrodes 231 was 1 mm, the voltage could be -0.5 kV, and when the distance between discharge electrodes 232 and adsorption electrodes 231 was 10 mm, the voltage could be -12 kV.

[0183] In one embodiment of the present invention, referring to Figure 1, the ratio of the discharge area of ​​the discharge electrode group 220 to the adsorption area of ​​the radial cross-section of the adsorption unit 230 was less than 0.9, and preferably, the ratio of the discharge area of ​​the front discharge electrode group 220 to the adsorption area of ​​the radial cross-section of the adsorption unit 230 was 0.5 to 0.9. Typical ratios were 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, or 0.9, but were not limited to these.

[0184] Furthermore, the following explanation was necessary.

[0185] When a front discharge electrode group has only one discharge beam, the discharge area of ​​the front discharge electrode group is the area of ​​that discharge beam, and it was understood that the area of ​​a single discharge beam can be the cross-sectional area of ​​the free end of that discharge beam perpendicular to the airflow direction. When a front discharge electrode group includes multiple discharge beams, the discharge area of ​​the front discharge electrode group can be understood as the area enclosed by the outermost discharge beams. Referring to Figure 8, for example, the front discharge electrode group 20 includes two discharge electrode groups 22 with different radii and installed coaxially, and each discharge electrode group 22 includes multiple discharge beams 21 installed in the circumferential direction. If the discharge beams in the same circumferential direction are circular and the radius of the outermost discharge electrode group is R, then the discharge area of ​​the front discharge electrode group is πR 2 That was the case.

[0186] The adsorption area of the radial cross-section of the adsorption unit was the cross-sectional area of the adsorption unit perpendicular to the air flow direction. Since the air flow first passed through the front discharge electrode group and then through the adsorption unit, it could be understood as the area of one end facing the front discharge electrode group of the adsorption unit. For example, both the adsorption electrode and the discharge electrode in the adsorption unit were hollow tubes with different diameters. The discharge electrode and the adsorption electrode were coaxially fitted, and the discharge electrode and the adsorption electrode were alternately installed in the direction from the axis to the outer periphery. The adsorption area of the radial cross-section of the adsorption unit was the cross-sectional area of the hollow tube with the maximum diameter. When the hollow tube was circular, the cross-sectional area was the area of the circle with the maximum diameter. When the hollow tube was hexagonal, the cross-sectional area was the area of the outermost hexagon. For example, both the adsorption electrode and the discharge electrode were flat plates, and the discharge electrode and the adsorption electrode were alternately installed in parallel. The adsorption area of the radial cross-section of the adsorption unit was the area of the rectangle surrounded by the outermost adsorption electrode.

[0187] In one embodiment of the present invention, referring to FIG. 1, the voltage of the discharge beam 221 was -3 kV to -60 kV, and the adsorption area of the radial cross-section of the adsorption unit was 0.001 m 2 ~0.5 m 2 It was. Among them, for the interpretation of the adsorption area of the radial cross-section of the adsorption unit, the above description could be referred to.

[0188] Optionally, the adsorption area of the radial cross-section of a typical adsorption unit was 0.001 m 2 , 0.005 m 2 , 0.01 m 2 , 0.05 m 2 , 0.04 m 2 , 0.08 m 2 , 0.1 m 2 , 0.2 m 2 , 0.3 m 2 , 0.4 m 2 , or 0.5 m 2 It was, but not limited thereto.

[0189] Furthermore, the smaller the adsorption area of ​​the radial cross-section of the adsorption unit, the lower the required discharge beam voltage, and the closer the discharge beam became to the adsorption unit. Conversely, the larger the adsorption area of ​​the radial cross-section of the adsorption unit, the higher the required discharge beam voltage, and the further the discharge beam became to the adsorption unit. However, there was a nonlinear relationship between the adsorption area of ​​the radial cross-section of the adsorption unit and the discharge beam voltage.

[0190] In one embodiment of the present invention, referring to Figure 1, a direct proportional relationship existed between the vertical distance L1 from the free end of the discharge beam 221 to the first end of the adsorption electrode of the adsorption unit 230 and the vertical distance L3 from the discharge beam 221 to the inner wall of the outermost adsorption electrode, given by L1 = (0.7~3) × L3. Preferably, L1 = (0.7~2) × L3. Typical relationships between L1 and L3 are L1 = 0.7 × L3, L1 = 0.8 × L3, L1 = 0.9 × L3, L1 = 1 × L3, L1 = 1.5 × L3, L1 = 2 × L3, L1 = 2.5 × L3, or L1 = 3 × L3, but are not limited to these.

[0191] Specifically, for example, the vertical distance L1 from the free end of the discharge beam 221 to the first end of the adsorption electrode of the adsorption unit 230 could be between 2 cm and 8 cm.

[0192] In one embodiment of the present invention, referring to Figure 1, the flow velocity range of the gas flowing through the gas particulate matter purification device 200 and subjected to electric field treatment was 0.2 to 2.0 m / s. Preferably, the flow velocity range of the gas flowing through the gas particulate matter purification device 200 and subjected to electric field treatment was 1 m / s.

[0193] In one embodiment of the present invention, referring to Figure 1, the voltage range of the discharge beam 221 was -3kV to -60kV.

[0194] In one embodiment of the present invention, the thickness of the discharge electrode and / or adsorption electrode is 0.01 to 5 mm, preferably 1.0 to 5 mm, and preferably 0.2 to 3 mm.

[0195] In one embodiment of the present invention, referring to Figure 1, the length of the gas flow path was 50 to 200 mm.

[0196] In one embodiment of the present invention, referring to Figure 1, the discharge electrode 232 and / or adsorption electrode 231 were made of a metallic material or a non-metallic conductive material. The non-metallic conductive material included at least one of graphite, graphene, carbon nanotubes, carbon 60, carbon fiber, conductive carbon black, amorphous carbon, and ion-conductive ceramics, or a composite material containing at least one of graphite, graphene, carbon nanotubes, carbon 60, carbon fiber wire, conductive carbon black, amorphous carbon, and ion-conductive ceramics, while the metallic material included stainless steel.

[0197] In one embodiment of the present invention, referring to Figure 1, the gas particulate matter purification device 200 includes a gas inlet 2111 and a gas outlet 2121. The front discharge electrode group 220 is located close to the gas inlet 2111, and the adsorption unit 230 is located close to the gas outlet 2121. Wire mesh is provided at both the gas inlet 2111 and the gas outlet 2121. This is used to shield electromagnetic signals and effectively prevent leakage of electromagnetic waves, and the gas can pass through the wire mesh.

[0198] In one embodiment of the present invention, the gas particulate matter purification device further comprises a power supply, the adsorption unit includes a first end close to the front discharge electrode group and a second end away from the front discharge electrode group, and the power supply is installed behind the second end of the adsorption unit.

[0199] In one embodiment of the present invention, the gas particulate matter purification device further comprises an air equalization unit, and the gas sequentially passes through the air equalization unit, the front discharge electrode group, and the adsorption unit along the direction of gas flow.

[0200] In the gas particulate matter purification system provided in this embodiment, micron-sized and nano-sized particulate matter can be removed as the gas passes through the gas particulate matter purification device. The removal effect for particulate matter larger than 100 nanometers reaches 99.99% or more, and after the gas is purified by the gas particulate matter purification device, a sterile, radiation-free, and virus-free clean gas can be obtained.

[0201] Example 2

[0202] As shown in Figure 1, this embodiment provides a front discharge electrode group usable in the gas particulate matter purification apparatus of Embodiment 1. In this embodiment, parts identical to those of Embodiment 1 are not described repeatedly, and only the different parts are described. The front discharge electrode group 220 includes at least one discharge beam 221, which includes a plurality of metal wires and / or conductive non-metallic wires (discharge material), one end of the plurality of metal wires and / or non-metallic wires fixed together to form a fixed end, and the other end is a free end, where the plurality of metal wires and / or non-metallic wires exhibit a dispersed state. The front discharge electrode group 220 further includes a support plate 222, to which the fixed end of the discharge beam 221 was fixed. The support plate 222 was made of a conductive material. The discharge beam of the front discharge electrode group was used for discharge after voltage was applied, and the discharge beam 221 was fixed to the conductive support plate 222. In this design, one or more discharge beams were fixed, and when the support plate was electrically connected to one pole of a DC power supply, the discharge beam 221 was also connected to the DC power supply. When there are multiple discharge beams, they can be connected to a single power supply simultaneously, resulting in a simple and convenient structure.

[0203] In one embodiment of the present invention, referring to Figure 1, the discharge beam 221 includes n metal wires and / or conductive nonmetallic wires, where n is 1,000 or more. Preferably, it includes 5,000 or more metal wires and / or conductive nonmetallic wires, preferably 10,000 or more metal wires and / or conductive nonmetallic wires, preferably 1 to 200,000 metal wires and / or conductive nonmetallic wires, and preferably 1 to 80,000 metal wires and / or conductive nonmetallic wires. Typical numbers of metal wires and / or conductive nonmetallic wires are 1,000, 2,000, 3,000, 4,000, 5,000, 6,000, 8,000, 10,000, 20,000, 50,000, 150,000, 200,000, 250,000, 300,000, 400,000, or 500,000, but are not limited to these.

[0204] With this design, the discharge beam, composed of thousands to tens of thousands of metal and / or conductive non-metallic wires, is fixed to a support plate and presents a brush-like appearance. The discharge beam employs corona discharge, and since the tip of each free end becomes a discharge point, the discharge effect is significantly improved, and ozone generation is effectively reduced to almost zero. Tests have shown that, under the same purification efficiency requirements, compared to purifying gas particulate matter with a single electrode rod or electrode wire and adsorption unit, when the front discharge electrode group of the present invention is combined with the same adsorption unit, the voltage that needs to be applied to the front discharge electrode group of the present invention is much lower than the voltage required for a single electrode rod or electrode wire, resulting in the advantages of lower energy consumption and lower cost.

[0205] In one embodiment of the present invention, the diameter range of the metal wire was 0.1 to 100 μm, preferably 5 to 100 μm. Typical diameters of the metal wire were, but were not limited to, 0.1 μm, 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 10 μm, 12 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, or 100 μm. For example, the metal wire included, but was not limited to, at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, and nickel alloy wire. The metal wire included stainless steel fiber wire, and the single fiber diameter range of the stainless steel fiber wire was 0.1 to 100 μm, or 5 to 100 μm. The carbon content in the discharge material ranged from 90% to 99.9%, with typical carbon content being 90%, 93%, 96%, or 99%, but not limited to these ranges.

[0206] In one embodiment of the present invention, the diameter range of the conductive nonmetallic wire was 0.1 to 100 μm, preferably 5 to 100 μm. Typical diameters of conductive nonmetallic wires were 0.1 μm, 0.5 μm, 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 10 μm, 12 μm, 15 μm, 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, or 100 μm, but were not limited to these. For example, the conductive nonmetallic wire included, but was not limited to, carbon fiber wire. The single fiber diameter range of the carbon fiber wire was also 0.1 to 100 μm, or 5 to 100 μm.

[0207] In this invention, the discharge beam of the front discharge electrode group is used for discharge after voltage is applied, ionizing the gas and charging the particulate matter in the gas. If an adsorption unit is present downstream, the charged particulate matter enters the adsorption unit and is adsorbed, thereby purifying the particulate matter. When the radial cross-sectional area of ​​the adsorption unit is small, the front discharge electrode group can include a single discharge beam positioned corresponding to the center of the adsorption field. The area covered by the discharge of this single discharge beam is sufficient to irradiate the entire adsorption unit, ensuring the required adsorption purification efficiency. When the radial cross-sectional area of ​​the adsorption unit is large, the front discharge electrode group can include multiple discharge beams. By having multiple discharge beams perform corona discharge simultaneously, the charging efficiency of the particles is increased, and the adsorption effect of the subsequent adsorption field is enhanced.

[0208] In the present invention, the corona discharge of the front discharge electrode group employs a DC negative high voltage, with a voltage range of -3kV to -60kV, and further, the voltage ranges were -3kV to -25kV, -4kV to -15kV, -8kV to -20kV, -10kV to -20kV, -15kV to -18kV, or -10kV to -23kV. Typical voltages included, but were not limited to, -3kV, -3.5kV, -4kV, -5kV, -6kV, -7kV, -8kV, -9kV, -10kV, -12kV, -13kV, -14kV, -15kV, -16kV, -17kV, -18kV, -19kV, -20kV, -21kV, 22kV, -23kV, -24kV, -25kV, -26kV, 27kV, -28kV, -29kV, 30kV, -35kV, -40kV, -45kV, -50kV, -55kV, or -60kV.

[0209] In one embodiment of the present invention, a front discharge electrode group and an adsorption unit constitute a gas particulate matter purification device for obtaining a sterile, radiation-free, and virus-free clean gas by adsorbing particulate matter in the gas. The front discharge electrode group is located in front of the adsorption unit along the direction of gas flow, and there is a distance between the front discharge electrode group and the adsorption unit. The discharge beam in the front discharge electrode group charges at least some of the particulate matter in the flowing gas by discharge, and the gas with at least some of the particulate matter charged enters the adsorption unit and is subjected to electrostatic particle removal treatment.

[0210] The front discharge electrode group provided in this embodiment can further improve discharge efficiency, thereby improving the efficiency of subsequent particulate matter removal. When applied to a gas-based particulate matter purification system, it can further improve the purification efficiency of micron-sized and nano-sized particulate matter.

[0211] Example 3

[0212] As shown in Figure 8, this embodiment provides another front discharge electrode group 20 that can be used in the gas particulate matter purification apparatus of Embodiment 1. In this embodiment, parts identical to those of Embodiment 2 are not described repeatedly, and only the different parts are described. The front discharge electrode group 20 includes at least one discharge electrode group 22, which includes a plurality of discharge beams 21 arranged circumferentially. To make it clear, the discharge beams 21 in the discharge electrode group 22 were distributed in a circular pattern. The front discharge electrode group 20 further includes a support plate 23, which is circular in shape, and the fixed ends of the discharge beams 21 are placed on the support plate 23. The plurality of discharge electrode groups 22 are connected to a DC high-voltage power supply, thereby enabling the front discharge electrode group 20 to be connected to a DC high-voltage power supply.

[0213] Continuing to refer to Figure 8, the front discharge electrode group 20 included multiple discharge electrode groups 22 with different radii and installed coaxially. For example, in this embodiment, the front discharge electrode group 20 included two discharge electrode groups 22, and the discharge beams 41 in each discharge electrode group 22 were distributed in a circular pattern. The radii of the circles in which the two discharge electrode groups 22 were located were different, but the center positions of the circles were the same.

[0214] In this embodiment, as shown in Figure 9, the discharge beam 21 is positioned along the axial direction BB' of the discharge electrode group 22, meaning that the extension of the discharge beam is parallel to the axis. In other words, in this embodiment, the discharge beam 21 is positioned along the direction of airflow.

[0215] In this invention, the discharge electrode group includes multiple discharge beams, resulting in improved corona discharge efficiency compared to a single discharge beam. Simultaneously, the arrangement of multiple discharge beams in the circumferential direction makes the discharge more uniform, contributing to improved particulate matter removal efficiency in the subsequent stage.

[0216] Example 4

[0217] This embodiment provides another front discharge electrode group, differing from Embodiment 3 in the orientation of the discharge beam in the front discharge electrode group, while other aspects refer to Embodiment 3.

[0218] In this embodiment, the front discharge electrode group 20' includes one discharge electrode group 22', the discharge electrode group 22' includes a plurality of discharge beams 21' arranged in the circumferential direction, and the discharge beams 21' in the discharge electrode group 22' are distributed in a circular pattern.

[0219] Referring to Figure 10, in this embodiment, the extension of the discharge beam 21' forms an angle α with the axis BB' of the discharge electrode group, and preferably, the angle α was 10 to 85°.

[0220] In this invention, the discharge beam in the circumferentially arranged discharge electrode group is inclined with respect to the axial direction to further improve the discharge efficiency, thereby improving the efficiency of subsequent particulate matter removal.

[0221] Example 5

[0222] This embodiment provides a wire mesh device for adsorbing and purifying large particulate matter, including micron-sized particulate matter, in a gas. Referring to Figures 11 and 12 (white arrows indicate the direction of gas flow), the wire mesh device 400 comprises a wire mesh front discharge electrode group 410 and a first wire mesh adsorption unit 420. The wire mesh front discharge electrode group 410 includes at least one discharge beam 411 connected to a DC high-voltage power supply. The first wire mesh adsorption unit 420 includes a stacked first multilayer wire mesh 421, and the first multilayer wire mesh 421 is grounded. Along the direction of gas flow, the first wire mesh adsorption unit 420 is located in front of the wire mesh front discharge electrode group 410 and at a distance from it (see Figure 11), or the first wire mesh adsorption unit 420 is located behind the wire mesh front discharge electrode group 410 and at a distance from it (see Figure 12). The discharge beam 411 of the wire mesh front discharge electrode group 410 is directed toward the first wire mesh adsorption unit 420, and an electric field is formed between the discharge beam 411 and the first multilayer wire mesh 421. The gas passes through the electric field between the first wire mesh adsorption unit 420 and the wire mesh front discharge electrode group 410 and is subjected to electric field purification treatment, removing micron-sized particulate matter, i.e., large particulate matter, from the gas, with a removal efficiency of at least 70-80%.

[0223] In one embodiment of the present invention, referring to Figures 11 and 12, the discharge beam 411 is electrically connected to the negative electrode of a DC high-voltage power supply, the first multilayer mesh 421 is electrically connected to the positive electrode of a DC high-voltage power supply, the first multilayer mesh 421 is grounded, the first multilayer mesh 421 is at zero potential, a negative potential difference is formed between the discharge beam and the multilayer mesh, the discharge beam 411 has a negative high-voltage potential, and an electric field is formed between the discharge beam and the multilayer mesh.

[0224] In one embodiment of the present invention, the multilayer wire mesh could be made of stainless steel.

[0225] In one embodiment of the present invention, referring to Figures 13 and 14 (white arrows indicate the direction of gas flow), the first wire mesh adsorption unit 420 further comprises a non-metallic rod 422 installed on the end face of the first multilayer wire mesh 421 facing the wire mesh front discharge electrode group 410. That is, the first multilayer wire mesh 421 includes a first end face 4211 facing the wire mesh front discharge electrode group 410 and a second end face 4212 opposite to the wire mesh front discharge electrode group 410. The non-metallic rod 422 is installed on the first end face 4211 of the first multilayer wire mesh 421, and the non-metallic rod 422 induces a high voltage from the discharge beam 411, forming an induced electric field with the first multilayer wire mesh 421. After the non-metallic rod 422 induces a high voltage, it discharges into the gas, charging the particulate matter in the gas. This charged particulate matter is adsorbed by the first multilayer wire mesh 421, which removes large particulate matter from the gas, further improving the gas purification efficiency.

[0226] In one embodiment of the present invention, referring to Figures 13 and 14, the discharge beam 411 is electrically connected to the negative electrode of a DC high-voltage power supply, the discharge beam 411 has a negative high-voltage potential, the nonmetallic rod 422 induces a negative voltage, the first multilayer mesh 421 is electrically connected to the positive electrode of a DC high-voltage power supply, the first multilayer mesh 421 is grounded, the first multilayer mesh 421 is at zero potential, a negative potential difference is formed between the nonmetallic rod 422 and the first multilayer mesh 421, thereby forming an induced electric field between the nonmetallic rod 422 and the first multilayer mesh 421.

[0227] Specifically, referring to Figure 13, along the direction of gas flow, the first wire mesh adsorption unit 420 is located in front of the wire mesh front discharge electrode group 410 and at a distance from the wire mesh front discharge electrode group 410, and the first wire mesh adsorption unit 420 further comprises a nonmetallic rod 422, and the first multilayer wire mesh 421 includes a first end face 4211 facing the wire mesh front discharge electrode group 410 and a second end face 4212 opposite to the wire mesh front discharge electrode group 410, and the nonmetallic rod 422 is installed on the first end face 4211 of the first multilayer wire mesh 421, and the nonmetallic rod 422 induces a high voltage of the discharge beam 411 and forms an induced electric field with the first multilayer wire mesh 421.

[0228] Specifically, referring to Figure 14, along the direction of gas flow, the first wire mesh adsorption unit 420 is located behind the wire mesh front discharge electrode group 410 and at a distance from the wire mesh front discharge electrode group 410, and the first wire mesh adsorption unit 420 further comprises a nonmetallic rod 422, and the first multilayer wire mesh 421 includes a first end face 4211 facing the wire mesh front discharge electrode group 410 and a second end face 4212 opposite to the wire mesh front discharge electrode group 410, and the nonmetallic rod 422 is installed on the first end face 4211 of the first multilayer wire mesh 421, and the nonmetallic rod 422 induces a high voltage of the discharge beam 411 and forms an induced electric field with the first multilayer wire mesh 421.

[0229] In one embodiment of the present invention, the non-metallic rod may have been made of nylon material.

[0230] In one embodiment of the present invention, referring to Figure 15, the wire mesh device 400 further comprises a second wire mesh adsorption unit 430, the second wire mesh adsorption unit 430 including a second multilayer wire mesh 431. Along the gas flow direction, the first wire mesh adsorption unit 420 was located on one side of the wire mesh front discharge electrode group 410, and the second wire mesh adsorption unit 430 was located on the other side of the wire mesh front discharge electrode group 410. Referring to Figure 5 (white arrows indicate the direction of gas flow), the second wire mesh adsorption unit 430 was installed behind the wire mesh device shown in Figure 11, that is, the second wire mesh adsorption unit 430 was located behind the wire mesh front discharge electrode group 410, and the first wire mesh adsorption unit 420 was located in front of the wire mesh front discharge electrode group 410. The wire mesh front discharge electrode group 410 was installed between the two wire mesh adsorption units (first wire mesh adsorption unit 420 and second wire mesh adsorption unit 430), with a distance between the first wire mesh adsorption unit 420 and the second wire mesh adsorption unit 430. The discharge beam 411 was directed toward the first multilayer wire mesh 421, and an electric field was formed between the discharge beam 411 and the first multilayer wire mesh 421. The gas passed through the electric field between the first wire mesh adsorption unit 420 and the wire mesh front discharge electrode group 410 and underwent electric field purification treatment, removing most of the micron-sized particulate matter, i.e., large particulate matter, from the gas. After large particulate matter is removed and purified by the electric field, the gas passes through the second multilayer wire mesh 431 of the second wire mesh adsorption unit 430, where the particulate matter in the gas is further adsorbed by the physical adsorption of the multilayer wire mesh, improving the removal efficiency.

[0231] In one embodiment of the present invention, as shown in Figure 15, the second multilayer wire mesh 431 of the second wire mesh adsorption unit 430 was electrically connected to the positive electrode of a DC high-voltage power supply. Charged particulate matter that was not adsorbed even after the electric field purification treatment between the first wire mesh adsorption unit 420 and the wire mesh front discharge electrode group 410 was adsorbed by the positively charged second multilayer wire mesh 431, further improving the particulate matter removal efficiency.

[0232] In one embodiment of the present invention, the second wire mesh adsorption unit 430 did not need to be energized. In this case, as the gas passed through the second wire mesh adsorption unit 430, the multilayer wire mesh achieved physical adsorption of particulate matter in the gas.

[0233] In one embodiment of the present invention, referring to Figure 16, the wire mesh device 400 further comprises a second wire mesh adsorption unit 430, the second wire mesh adsorption unit 430 including a second multilayer wire mesh 431. Referring to Figure 16 (white arrows indicate the direction of gas flow) along the direction of gas flow, the second wire mesh adsorption unit 430 is positioned in front of the wire mesh device shown in Figure 12, that is, the second wire mesh adsorption unit 430 is located in front of the wire mesh front discharge electrode group 410, and the first wire mesh adsorption unit 420 is located behind the wire mesh front discharge electrode group 410, with the wire mesh front discharge electrode group 410 being positioned between the two wire mesh adsorption units (first wire mesh adsorption unit 420 and second wire mesh adsorption unit 430), with a distance between the first wire mesh adsorption unit 420 and the second wire mesh adsorption unit 430, respectively. The discharge beam 411 is directed toward the first multilayer wire mesh 421, and the discharge beam 411 and the first multilayer wire mesh 421 form an electric field. The gas first enters the second wire mesh adsorption unit 430, where physical adsorption by the second multilayer wire mesh 431 removes some of the large particulate matter in the gas and also homogenizes the gas, allowing it to pass more uniformly through the electric field between the subsequent first wire mesh adsorption unit 420 and the wire mesh front discharge electrode group 410. In this electric field, the gas is further purified, removing micron-sized particulate matter, improving the particulate matter adsorption capacity, and increasing the removal efficiency.

[0234] In one embodiment of the present invention, referring to Figure 17 (white arrows indicate the direction of gas flow), based on the wire mesh device shown in Figure 5, the first wire mesh adsorption unit 420 includes a non-metallic rod 422, and the first multilayer wire mesh 421 includes a first end face facing the wire mesh front discharge electrode group 410 and a second end face opposite to the wire mesh front discharge electrode group 410. The first non-metallic rod 422 is installed on the first end face of the first multilayer wire mesh 421, and the first non-metallic rod 422 induces a high voltage from the discharge beam 411, forming an induced electric field with the first multilayer wire mesh 421. Due to this induced electric field, the electric field formed between the first multilayer wire mesh 421 and the discharge beam 411, and the joint adsorption action of the second wire mesh adsorption unit 430, large particulate matter in the gas is effectively removed, and the removal efficiency reaches 80% or more.

[0235] In this invention, "there is a distance between the first wire mesh adsorption unit 420 and the wire mesh front discharge electrode group 410" refers to the vertical distance from the free end of the discharge beam 411 in the wire mesh front discharge electrode group 410 to the first multilayer wire mesh 421.

[0236] In one embodiment of the present invention, the wire mesh front discharge electrode group includes at least one discharge beam connected to a DC high-voltage power supply, wherein the features relating to the wire mesh front discharge electrode group can refer to the features of the front discharge electrode group in Examples 1 to 4, and the features relating to the discharge beam can refer to the features of the discharge beam in Examples 1 to 4.

[0237] Example 6

[0238] This embodiment provides a gas particulate matter purification device based on the apparatus described in Examples 1 to 4, further comprising the wire mesh device of Example 5. Along the airflow direction, the wire mesh device was installed in front of the front discharge electrode group of Examples 1 to 4.

[0239] The gas first passed through a wire mesh device to remove large particulate matter, and then entered the downstream stage of the gas particulate matter purification device (the device described in Examples 1-4), where nano-sized particulate matter was further removed. This design allowed large particles to be adsorbed onto the wire mesh device, extending the lifespan of the downstream stage of the gas particulate matter purification device. The gas particulate matter purification device described in this example removed more than 99.99% of the particulate matter in the gas, resulting in a sterile, radiation-free, and virus-free clean gas.

[0240] Example 7

[0241] This embodiment provides a gas treatment apparatus comprising multiple gas particulate matter purification devices described in any one embodiment or model of Examples 1 to 6. In this embodiment, the radial cross-section of the gas particulate matter purification device may be hexagonal, and the multiple gas particulate matter purification devices were arranged in a honeycomb pattern. In this embodiment, the radial cross-section of the gas particulate matter purification device may be rectangular, and the multiple gas particulate matter purification devices were arranged in a matrix pattern.

[0242] In one embodiment of the present invention, as shown in Figure 18, a gas processor 2000 is provided that comprises seven gas particulate matter purification devices 200 described in any one of the embodiments or models of Examples 1 to 6. The seven gas particulate matter purification devices 200 are arranged in a honeycomb pattern, which is capable of handling demand scenarios for purifying relatively large flow rates of gas.

[0243] In one embodiment of the present invention, as shown in Figure 19, a gas processor 2000 is provided that comprises 19 gas particulate matter purification devices 200 described in any one of the embodiments or models of Examples 1 to 6. The 19 gas particulate matter purification devices 200 are arranged in a honeycomb pattern, enabling the handling of demand scenarios requiring the purification of large-flow gases.

[0244] Example 8

[0245] This embodiment provides an indoor gas treatment system equipped with a partition separating the indoor and outdoor areas. The partition is provided with an airflow passage, and within the airflow passage is a gas particulate matter purification device described in any one of the embodiments or models of Embodiments 1 to 7. In this configuration, outdoor air enters the room through the gas particulate matter purification device in the partition, or indoor air enters the outside through the gas particulate matter purification device in the partition.

[0246] Specifically, partitions could include walls, glass, and other materials.

[0247] This design allowed the outside air to be purified before entering the building. In places with severe pollution, such as hospitals, the indoor air could be purified using this method before entering the building.

[0248] Example 9

[0249] This embodiment provides a transportation gas treatment system comprising an internal air conditioning circulation duct and an external air conditioning circulation duct, wherein the internal air conditioning circulation duct and / or the external air conditioning circulation duct are equipped with a gas particulate matter purification device described in any one of the embodiments or models of Examples 1 to 7.

[0250] This design allowed purified air to re-enter the vehicle.

[0251] Example 10

[0252] This embodiment provides a mask system comprising a mask, a gas duct, and a gas-infused particulate matter purification device described in any one embodiment or model of Examples 1 to 7. The gas-infused particulate matter purification device is in fluid communication with the mask via the gas duct. The purified gas processed by the gas-infused particulate matter purification device is sent to the mouth and nose of a person via the gas duct and mask, or gas exhaled from the mouth and nose of a person first passes through the mask and gas duct, is then processed by the gas-infused particulate matter purification device, and released into the air.

[0253] This design allowed outside air to be purified before entering a person's mouth and nose. In patients with respiratory infections, exhaled gases could be purified in this way before entering the outside.

[0254] In one embodiment of the present invention, referring to Figures 20 and 21, an open-type mask system 50 for supplying purified gas to the mouth and nose is provided. This open-type mask system comprises a gas-in-particulate matter purification device 51 described in any of the above embodiments (examples or embodiments) and an open-type mask 52. The open-type mask 52 was in fluid communication with the gas-in-particulate matter purification device 51 via a gas duct 53. The purified gas processed by the gas-in-particulate matter purification device 51 or the gas treatment system 51 was delivered to the mouth and nose of a person via the gas duct 53 and the open-type mask 52. The structure of the gas-in-particulate matter purification device is described above, and has not been repeated in this embodiment.

[0255] This design allowed people to constantly breathe clean gas by guiding the purified gas, obtained after sterilization and disinfection of the air by a gas purification device, to the vicinity of the mouth and nose. The open-type mask quickly removed exhaled gas from the mouth and nose, keeping the air around the mouth and nose constantly clean. It was powered by a rechargeable battery or dry cell batteries and was easy to carry.

[0256] Referring to Figure 20, the open-type mask 52 was equipped with a ventilation structure 521 that was open at the top. The ventilation structure 521 had a casing plate located outside the breathing opening and surrounding the mouth and nose. The height of the casing plate was adjustable and could be adjusted up and down. The treated gas could enter the ventilation structure 40 from at least one direction below, to the left, or to the right of the mouth and nose area, and there was an opening above the ventilation structure 40 used for gas discharge.

[0257] This design, with its open-type ventilation structure, made it more comfortable to wear than a regular mask and could be used as a substitute for one.

[0258] Referring to Figure 20, the air blower structure 521 had at least one of the following features:

[0259] Feature 1) Referring to Figure 14, the bottom of the air blower structure 521 has an air intake (not shown), and an air equalization damper (not shown) is provided in this air intake to allow the entry of purified gas. Preferably, the air equalization damper is provided with small holes that are densely and uniformly distributed, and preferably, the air equalization damper is provided with uniformly distributed holes with a diameter of 2 to 4 mm.

[0260] This design reduces and homogenizes the flow rate of gas entering a person's mouth and nose, allowing the airflow to rise uniformly and steadily across the entire surface, resulting in a comfortable mouth and nose even when using the open-type mask system for extended periods.

[0261] Feature 2) Referring to Figure 14, the upper end surface of the air blower structure 521 was lower than the tip of a person's nose, and the straight-line distance L5 between the upper end surface of the air blower structure 521 and the tip of a person's nose was 2 cm. In other embodiments, the upper end surface of the air blower structure was located above the tip of a person's nose, preferably 2 cm higher than the tip of a person's nose.

[0262] Feature 3) Referring to Figure 15, the vertical distance between the tip of the person's nose and the air blower structure was 0-5 cm, meaning that the length of L4 in Figure 15 was 0-5 cm. This meant that the air blower structure could be in contact with or not in contact with the tip of the person's nose.

[0263] Referring to Figure 21, the open-type mask 52 may also have been equipped with a strap 522 for the wearer to put on the open-type mask 52.

[0264] Example 11

[0265] This embodiment provides an exhaust gas treatment system equipped with a gas particulate matter purification device described in any one of the embodiments or models of Examples 1 to 7, wherein the exhaust gas includes one of the following: cooking oil fumes, processing equipment exhaust gas, industrial exhaust gas, automobile exhaust gas, and boiler exhaust gas.

[0266] Example 12

[0267] This embodiment provides a table equipped with a gas particulate matter purification device described in any one of the embodiments or examples from Examples 1 to 7.

[0268] In one embodiment of the present invention, holes with a diameter of 70 mm to 500 mm are made directly in front of each seat on an office desk, and a gas-powered particulate matter purification device is installed in these holes. By continuously supplying clean air with the gas-powered particulate matter purification device, it is ensured that no particles, bacteria, or viruses are present in the air above the table and around the seats, thereby preventing the inhalation of pathogens and achieving the effect of eradicating their transmission.

[0269] For example, by arranging the seats to align with the position of the holes, a gas-fired particulate matter purification device could be placed in front of each participant in the meeting, and the clean air generated by the gas-fired particulate matter purification device could be continuously supplied to each participant.

[0270] Example 13

[0271] This embodiment provides a system for producing water from air, comprising a gas particulate matter purification device and a water production device described in any one embodiment or example of Examples 1 to 7, wherein first, particulate matter in the air is adsorbed and purified using the gas particulate matter purification device, and then water is produced from the purified air using the water production device.

[0272] Test example

[0273] Table 1 shows the test results of purifying particulate matter in the air using the particulate matter purification device provided in Examples 1 to 2. Among them, the purification efficiency was the removal effect on particulate matter of 100 nanometers or more. As can be seen from Table 1, the purification efficiency reached 99.99%.

[0274]

Table 1

[0275] Example 14

[0276] Some embodiments of the present invention provided an exhaust gas treatment device for an internal combustion engine. As shown in FIG. 22, the device includes a coarse particle filter device 400, a catalytic oxidation device 500, a DPF device 600, and a denitration device 700 that are sequentially installed in fluid communication along the gas flow direction. Among them, the coarse particle filter device 400 adsorbs particulate matter of micron size or more in the exhaust gas using an electric field. The exhaust gas after being treated by the coarse particle filter device 400 enters the catalytic oxidation device 500, where a catalyst is arranged, and one or more substances among nitric oxide, carbon monoxide, and hydrocarbons in the exhaust gas can be catalytically oxidized, and at least a part of one or more of nitric oxide, carbon monoxide, and hydrocarbons in the exhaust gas is removed. The exhaust gas after being catalytically oxidized by the catalytic oxidation device 500 enters the DPF device 600, and the DPF device 600 filters the particulate matter in the exhaust gas and can filter and remove large particulate matter in the exhaust gas, for example, particulate matter with a particle size of micron size or more. The exhaust gas after large particulate matter is filtered by the DPF device 600 enters the denitration device 700 and is subjected to denitration treatment. The denitration treatment can be performed using a method of an existing technology with urea or ammonia as a reducing agent.

[0277] In the present invention, the DPF device 600 was an existing DPF device.

[0278] In the present invention, the catalytic oxidation device 500 is filled with a catalytic oxidant, which could refer to the manganese oxide catalyst provided by Chinese Patent CN116809054A.

[0279] In the present invention, the coarse particle filter device 400 uses a wire mesh device provided in the example, which is a gas particulate matter purification device provided in the tenth aspect of the present invention. After a certain period of use, the first multilayer wire mesh 421 and / or the second multilayer wire mesh 431 could be removed and regenerated by washing. The first multilayer wire mesh 421 and / or the second multilayer wire mesh 431 after washing could be reused, saving costs.

[0280] Some embodiments of the present invention also provide an exhaust gas treatment method for an internal combustion engine that achieves extended lifespan and reduced cost, the method comprising the following steps.

[0281] S1: Front coarse particle filtration

[0282] S11: Exhaust gas was introduced into the coarse particle filter device 400. The coarse particle filter device 400 applied an electric field and / or physical adsorption to the exhaust gas that flowed inside, and particulate matter was adsorbed onto the first multilayer wire mesh 421 and / or the second multilayer wire mesh 431, thereby removing particulate matter larger than micron size. 70-80% of large particles were removed, reducing clogging of the DPF.

[0283] S12: After performing the electrostatic adsorption treatment for a certain period of time, the first multilayer wire mesh 421 and / or the second multilayer wire mesh 431 were removed and could be regenerated by cleaning them. The cleaned first multilayer wire mesh 421 and / or the second multilayer wire mesh 431 could be reused, saving costs.

[0284] S2: Catalytic oxidation treatment

[0285] The exhaust gas, after being adsorbed by the coarse particle filter device 400, was fed into the catalytic oxidation device 500 for catalytic oxidation treatment, removing at least a portion of nitric oxide, carbon monoxide, and one or more hydrocarbons from the exhaust gas of the internal combustion engine.

[0286] S3: DPF processing

[0287] The exhaust gas after catalytic oxidation treatment was fed into a DPF (diesel particulate filter) device to collect particulate matter and remove large particulate matter from the exhaust gas.

[0288] S4: Denitrification treatment

[0289] The exhaust gas from the internal combustion engine, after particulate matter collection treatment, was fed into a denitrification device 700 for denitrification treatment, using urea or ammonia as a reducing agent.

[0290] In this embodiment, before the exhaust gas enters the DPF device 600 and undergoes particulate matter filtration, it is first treated by the coarse particle filter device 400, removing some particulate matter larger than a micron. With this design, some micron-sized particles are already adsorbed by electric field action before physical adsorption, which reduces the resistance of the DPF device, lowers back pressure, extends service life, reduces costs, saves fuel consumption, and reduces pollutant emissions.

[0291] Although preferred embodiments of the present invention have been described in detail above, those skilled in the art will understand that after reading the above, various variations and modifications can be made to the present invention. These equivalent forms are also included within the scope limited by the claims of this application.

Claims

1. A gas particulate matter purification device for adsorbing and purifying particulate matter in a gas, wherein the gas particulate matter purification device is It comprises a front discharge electrode group and an adsorption unit, Along the direction of gas flow, the front discharge electrode group is located in front of the adsorption unit and has a distance between it and the adsorption unit. The front discharge electrode group includes at least one discharge beam connected to a DC high-voltage power supply, The adsorption unit includes at least one adsorption electrode and at least one discharge electrode for forming an adsorption electric field, of which, A gas-based particulate matter purification device characterized in that a gas channel is formed between the discharge electrode and the adsorption electrode for passing the gas and performing the electric field treatment, and the distance between adjacent discharge electrodes and adsorption electrodes is the same.

2. The end of the adsorption electrode closest to the front discharge electrode group protrudes forward more than the end of the discharge electrode closest to the front discharge electrode group, or The gas particulate matter purification apparatus according to claim 1, characterized in that the end of the adsorption electrode near the front discharge electrode group and the end of the discharge electrode near the front discharge electrode group are on the same plane perpendicular to the airflow direction.

3. The discharge electrode includes a first discharge electrode end close to the front discharge electrode group, the adsorption electrode includes a first adsorption electrode end close to the front discharge electrode group, the first adsorption electrode end is located in front of the first discharge electrode end, and the distance range between the orthogonal projection of the first discharge electrode end onto the adsorption electrode and the first adsorption electrode end is 10 cm or less. The gas particulate matter purification device according to claim 1, characterized in that, optionally, the distance range between the orthogonal projection of the first end of the adsorption electrode onto the discharge electrode and the first end of the discharge electrode is 3 cm or less.

4. The gas-in-particulate matter purification apparatus comprises a power supply 1 and a power supply 2, wherein both ends of power supply 1 are electrically connected to the discharge beam and the adsorption electrode, respectively, and both ends of power supply 2 are electrically connected to the discharge electrode and the adsorption electrode, respectively, and the adsorption electrode is grounded, characterized in that the gas-in-particulate matter purification apparatus according to claim 1.

5. The discharge beam (1) The discharge beam includes n metal wires and / or conductive nonmetal wires, of which n is 0.1 million or more. (2) The discharge beam includes a plurality of metal wires and / or conductive nonmetal wires Satisfying one or two of the following conditions, The gas particulate matter purification device according to claim 1, characterized in that the diameter range of the metal wire is 0.1 to 100 μm, or the diameter range of the conductive nonmetallic wire is 0.1 to 100 μm.

6. The gas particulate matter purification device according to claim 5, characterized in that the metal wire includes at least one of stainless steel fiber wire, titanium-chromium-aluminum alloy wire, titanium alloy wire, and nickel alloy wire, or the conductive nonmetallic wire is carbon fiber wire.

7. The gas particulate matter purification device according to claim 6, characterized in that the single fiber diameter range of the stainless steel fiber wire is 5 to 100 μm, or the single fiber diameter range of the carbon fiber wire is 5 to 100 μm.

8. The front discharge electrode group includes at least one discharge electrode group, and the discharge electrode group includes a plurality of discharge beams arranged in the circumferential direction, of which, The gas particulate matter purification apparatus according to any one of claims 1 to 7, characterized in that, when the front discharge electrode group includes a plurality of discharge electrode groups having different radii, the plurality of discharge electrode groups are installed coaxially.

9. The gas particulate matter purification apparatus according to claim 5, characterized in that one end of a plurality of metal wires and / or conductive nonmetallic wires is fixed together to form a fixed end, and the other end is a free end facing the adsorption unit, wherein the front discharge electrode group further comprises a support plate, and the fixed end of the discharge beam is fixed to the support plate.

10. The outermost adsorption electrode in the adsorption unit is an external adsorption electrode, one end of the external adsorption electrode is extended to form an extension, and the front discharge electrode group is installed within the extension. Optionally, the vertical distance between the front discharge electrode group and the extension is 5 to 150 mm. The gas particulate matter purification apparatus according to claim 1, characterized in that the vertical distance between the front discharge electrode group and the extension is optionally 5 to 20 mm.

11. An insulating layer is provided on the inner wall of the extension, and the front discharge electrode group is installed within the insulating layer, and there is a distance between the insulating layer and the front discharge electrode group. Optionally, the vertical distance between the front discharge electrode group and the insulating layer is 5 to 150 mm. The gas particulate matter purification apparatus according to claim 10, characterized in that the vertical distance between the front discharge electrode group and the insulating layer is optionally 5 to 20 mm.

12. The adsorption electrode and the discharge electrode are both hollow tubes of different diameters, the discharge electrode and the adsorption electrode are fitted coaxially, and the discharge electrode and the adsorption electrode are alternately installed in the direction from the axis toward the outer circumference, the distance between the discharge electrode and the adsorption electrode is the same, and a gas channel is formed between the discharge electrode and the adsorption electrode for passing the gas in order to perform electric field processing. The cross-section of the hollow tube may be circular or polygonal. The gas particulate matter purification device according to claim 1, characterized in that the polygon is optionally a hexagon or a rectangle.

13. The gas particulate matter purification apparatus according to claim 12, wherein the hollow tube with the smallest diameter in the adsorption unit is an internal discharge electrode or an internal adsorption electrode, and the gas particulate matter purification apparatus further comprises a power supply, and the power supply is installed within the internal discharge electrode or internal adsorption electrode.

14. The gas particulate matter purification apparatus according to claim 1, characterized in that both the adsorption electrode and the discharge electrode are flat plates, the discharge electrode and the adsorption electrode are installed alternately in parallel, the distance between the discharge electrode and the adsorption electrode is the same, and a gas channel is formed between the discharge electrode and the adsorption electrode for passing the gas in order to perform electric field treatment.

15. The aforementioned gas particulate matter purification device is, Feature 1: The distance range between the discharge electrode and the adsorption electrode is 30 mm or less, optionally 10 mm or less, optionally 2.5 to 10 mm, or 3 to 6 mm. Feature 2: The voltage range between the discharge electrode and the adsorption electrode is -0.5kV to -12kV, optionally, the voltage range between the discharge electrode and the adsorption electrode is -1kV to -8kV, optionally, the voltage range is -1kV to -3kV, optionally, the voltage range is -0.5kV to -3kV, Feature 3: When the distance between the discharge electrode and the adsorption electrode is 10 mm or less, the voltage range between the adsorption electrode and the discharge electrode is -0.5 to -12 kV. Feature 4: The ratio of the discharge area of ​​the front discharge electrode group to the adsorption area of ​​the radial cross-section of the adsorption unit is less than 0.9, and optionally, the ratio of the discharge area of ​​the front discharge electrode group to the adsorption area of ​​the radial cross-section of the adsorption unit is 0.5 to 0.

9. Feature 5: The adsorption area of ​​the radial cross-section of the adsorption unit is 0.001 m². 2 ~0.5m 2 In that case, the voltage of the discharge beam is -3kV to -60kV, Feature 6: A direct proportional relationship exists between the vertical distance L1 from the free end of the discharge beam to the first end of the adsorption electrode of the adsorption unit and the vertical distance L3 from the discharge beam to the inner wall of the outermost adsorption electrode, given by L1 = (0.7 to 3) × L3. Feature 7: The flow velocity range of the gas flowing through the gas particulate matter purification device and subjected to electric field treatment is 0.2 to 2.0 m / s, and optionally, the flow velocity range of the gas flowing through the gas particulate matter purification device and subjected to electric field treatment is 1 m / s. Feature 8: The voltage range of the discharge beam is -3kV to -60kV. Feature 9: The thickness of the discharge electrode and / or the adsorption electrode is 0.01 mm to 5 mm. Optionally, the thickness of the discharge electrode and / or the adsorption electrode is 1.0 to 5 mm, or the thickness is 0.2 to 3 mm. Feature 10: The length of the gas flow path is 50 to 200 mm. The gas particulate matter purification device according to claim 1, characterized in that it has at least one of the following features.

16. The gas particulate matter purification device further comprises a wire mesh device installed in front of the front discharge electrode group, The wire mesh device comprises a wire mesh front discharge electrode group and a first wire mesh adsorption unit, wherein the wire mesh front discharge electrode group includes at least one discharge beam electrically connected to one electrode of a DC high-voltage power supply, and the first wire mesh adsorption unit includes a laminated multilayer wire mesh electrically connected to another electrode of the DC high-voltage power supply, of which, Along the direction of gas flow, the first wire mesh adsorption unit is located in front of the wire mesh front discharge electrode group and at a distance from the wire mesh front discharge electrode group, or the first wire mesh adsorption unit is located behind the wire mesh front discharge electrode group and at a distance from the wire mesh front discharge electrode group, and The gas particulate matter purification apparatus according to claim 1, characterized in that the discharge beam is installed on the surface of the wire mesh front discharge electrode group facing the first wire mesh adsorption unit, and the discharge beam of the wire mesh front discharge electrode group and the multilayer wire mesh of the first wire mesh adsorption unit form an electric field.

17. The wire mesh device further comprises a second wire mesh adsorption unit, the second wire mesh adsorption unit includes a stacked multilayer wire mesh, The gas particulate matter purification apparatus according to claim 16, characterized in that, along the direction of gas flow, the first wire mesh adsorption unit is located on one side of the wire mesh front discharge electrode group, the second wire mesh adsorption unit is located on the other side of the wire mesh front discharge electrode group, and there is a distance between the second wire mesh adsorption unit and the wire mesh front discharge electrode group.

18. The gas particulate matter purification apparatus according to claim 17, characterized in that the multilayer wire mesh of the second wire mesh adsorption unit is electrically connected to one electrode of a DC high-voltage power supply.

19. The wire mesh front discharge electrode group includes at least one discharge electrode group, and the discharge electrode group includes a plurality of discharge beams arranged in the circumferential direction, of which, The gas particulate matter purification apparatus according to claim 16, characterized in that, when the wire mesh front discharge electrode group includes a plurality of discharge electrode groups with different radii, the plurality of discharge electrode groups are installed coaxially.

20. The discharge electrode and / or the adsorption electrode are made of a metallic material or a non-metallic conductive material, of which, The gas particulate matter purification device according to claim 1, wherein the nonmetallic conductive material includes at least one of graphite, graphene, carbon nanotubes, carbon 60, carbon fiber, conductive carbon black, amorphous carbon, and ion-conductive ceramics, or a synthetic material containing at least one of graphite, graphene, carbon nanotubes, carbon 60, carbon fiber wire, conductive carbon black, amorphous carbon, and ion-conductive ceramics, or the metallic material includes stainless steel.

21. The gas-in-particulate matter purification apparatus further comprises an air equalization unit, wherein the gas passes sequentially through the air equalization unit, the front discharge electrode group, and the adsorption unit along the direction of gas flow, as described in claim 1.

22. A partition is provided to separate the indoor and outdoor areas, an airflow passage is provided in the partition, and a gas particulate matter purification device according to any one of claims 1 to 21 is provided within the airflow passage, among which, The outside air passes through the gas particulate matter purification device in the partition and enters the room, or An indoor gas treatment system characterized in that the indoor air passes through the gas particulate matter purification device in the partition and enters the outside of the room.

23. A transportation gas treatment system comprising an internal air conditioning circulation duct and an external air conditioning circulation duct, wherein the internal air conditioning circulation duct and / or the external air conditioning circulation duct are provided with a gas particulate matter purification device according to any one of claims 1 to 21.

24. The device comprises a mask, a gas duct, and a gas particulate matter purification device according to any one of claims 1 to 21, wherein the gas particulate matter purification device is in fluid communication with the mask via the gas duct, and among these, The purified gas treated by the gas particulate matter purification device is sent to a person's mouth and nose via the gas duct and the mask, or A mask system characterized in that gas exhaled from a person's mouth and nose first passes through the mask and the gas duct, and then is treated by the gas particulate matter purification device before being released into the air.

25. The gas particulate matter purification device is provided according to any one of claims 1 to 21, and among them, An exhaust gas treatment system characterized in that the exhaust gas includes one of the following: cooking oil fumes, processing equipment exhaust gas, industrial exhaust gas, automobile exhaust gas, and boiler exhaust gas.

26. A table characterized by comprising a gas particulate matter purification device according to any one of claims 1 to 21.

27. The gas particulate matter purification device according to any one of claims 1 to 21 and the water production device, of which, A water production system from air, characterized by first using the gas particulate matter purification device to adsorb and purify particulate matter in the air, and then producing water from the purified air using the water production device.

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