Electric field unit, electric field adsorption device and electric field device

Abstract

The present invention discloses an electric field unit, an electric field adsorption device and an electric field device. The electric field unit has a channel extending in an axial direction, a side wall is formed around the channel, the side wall is provided with an air inlet for gas to enter the channel and an air outlet for gas to discharge the channel, and the center of the air inlet and the center of the air outlet are arranged on different planes perpendicular to the axial direction. The present invention can make the gas flow in the channel turbulent, further increase the residence time of the gas in the electric field, increase the frequency of close contact with the discharge electrode, and improve the charging efficiency and the amount of particle charge.

Description

Technical Field

[0001] The present invention relates to the field of electric fields, and in particular to an electric field unit, an electric field adsorption device and an electric field device. Background Art

[0002] At present, electrostatic technology is widely used in the field of gas purification. When the gas passes through the electrostatic field, it is ionized. After the particles in the gas combine with the charged ions, they tend to move to the electrode with the opposite polarity of the charged ions and deposit. It can be seen that the particle removal rate is related to the charging efficiency of the particles. At present, the direction of gas entering the electric field in the electrostatic gas purification device is perpendicular to the direction of ion flow in the electric field, and there are defects such as short gas residence time in the electric field and low charging efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide an electric field unit, an electric field adsorption device and an electric field device to solve the problems existing in the above-mentioned prior art.

[0004] In order to solve the above problem, according to one aspect of the present invention, an electric field unit is provided, wherein the electric field unit has a channel extending along the axial direction, and a side wall is formed around the channel, and the side wall is provided with an air inlet hole for gas to enter the channel and an air outlet hole for gas to discharge the channel, and the center of the air inlet hole and the center of the air outlet hole are arranged on different planes perpendicular to the axial direction.

[0005] In one embodiment, the electric field unit includes a plurality of the air inlet holes and a plurality of the air outlet holes, the plurality of the air inlet holes are arranged in at least one row along the axial direction, and the plurality of the air outlet holes are arranged in at least one row along the axial direction, wherein the center of any one of the air inlet holes and the center of any one of the air outlet holes are arranged on different planes perpendicular to the axial direction.

[0006] In one embodiment, the plurality of air inlet holes are evenly distributed along the axial direction, and / or the plurality of air outlet holes are evenly distributed along the axial direction.

[0007] In one embodiment, the plurality of air inlet holes and / or the plurality of air outlet holes are arranged axially from one end of the side wall to the other end of the side wall.

[0008] In one embodiment, the air inlet hole and / or the air outlet hole is a circular hole; preferably, the air inlet hole and the air outlet hole have the same diameter.

[0009] In one embodiment, the electric field unit includes a plurality of the side walls, and the air inlet holes and the air outlet holes are respectively arranged on different side walls.

[0010] In one embodiment, the electric field unit includes a plurality of side walls, which are connected in sequence so that the channel has a regular polygonal cross-section; preferably, the electric field unit includes at least three side walls; preferably, the electric field unit includes at least six side walls.

[0011] In one embodiment, the electric field unit constitutes the cathode or anode of the electric field.

[0012] According to another aspect of the present invention, there is provided an electric field adsorption device, which includes a plurality of electric field units according to any one of the embodiments, wherein the plurality of electric field units are connected into an integral structure.

[0013] In one embodiment, two adjacent electric field units share a side wall, and two surfaces of the side wall face two channels respectively.

[0014] In one embodiment, the electric field adsorption device constitutes the cathode and / or anode of the electric field.

[0015] In one embodiment, preferably, the plurality of electric field units include a first group of electric field units and a second group of electric field units, the first group of electric field units forms an anode of the electric field, and the second group of electric field units forms a cathode of the electric field.

[0016] According to another aspect of the present invention, there is provided an electric field device, comprising a discharge electrode and an adsorption electrode, wherein the adsorption electrode is composed of the electric field unit described in any one of the embodiments, and the discharge electrode is composed of a conductor arranged in the channel and extending along the channel.

[0017] In one embodiment, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel. Preferably, the channel has a regular polygonal cross section, and the discharge electrode passes through the center of the inscribed circle of the cross section.

[0018] According to another aspect of the present invention, there is provided an electric field device, comprising a discharge electrode and an adsorption electrode, characterized in that the adsorption electrode is composed of the electric field adsorption device described in any one of the embodiments, and the discharge electrode is composed of a conductor arranged in each of the channels and extending along the channels.

[0019] In one embodiment, the electric field device further comprises a top plate and a bottom plate, wherein the top plate and the bottom plate are respectively connected to two ends of the electric field device and seal the two ends of the channel.

[0020] In one embodiment, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel. Preferably, the channel has a regular polygonal cross section, and the discharge electrode passes through the center of the inscribed circle of the cross section.

[0021] According to another aspect of the present invention, there is provided an electric field device, comprising a discharge electrode and an adsorption electrode, wherein the adsorption electrode is composed of a hollow tube, the discharge electrode is inserted into the hollow tube of the adsorption electrode, and an electric field is formed between the discharge electrode and the adsorption electrode. The device is characterized in that an air inlet for gas entry is provided on the hollow side wall of the adsorption electrode, and the gas entry direction is not perpendicular to the ion flow direction in the electric field.

[0022] In one embodiment, an air outlet hole for gas discharge is provided on the side wall of the adsorption pole tube, and the air inlet hole and the air outlet hole are arranged in a staggered manner to form a cyclone structure.

[0023] In one embodiment, the hollow cross-section of the adsorption pole tube is circular or polygonal.

[0024] In one embodiment, the polygon includes a triangle, a quadrilateral, a pentagon or a hexagon.

[0025] In one embodiment, the air inlet and the air outlet of the adsorption electrode are located on different side walls.

[0026] In one embodiment, the side wall of the adsorption electrode on which the air inlet or air outlet is formed is formed by a Venturi plate.

[0027] In one embodiment, the discharge electrode and the adsorption electrode form an electric field generating unit; including two electric field generating units connected in series, and the adsorption electrodes in the two electric field generating units share a side wall with an air inlet or an air outlet.

[0028] In one embodiment, the two electric field generating units connected in series include a first electric field generating unit and a second electric field generating unit, and the side wall with the vent hole on the adsorption pole of the first electric field generating unit is used as a side wall of the adsorption pole in the second electric field generating unit, and the other side walls of the second electric field generating unit are provided with vent holes for gas discharge.

[0029] In one embodiment, at least one power supply is further included, the adsorption electrode of the electric field generating unit is electrically connected to one electrode of the power supply, and the discharge electrode of the electric field generating unit is electrically connected to another electrode of the power supply.

[0030] According to another aspect of the present invention, an electric field unit is provided, characterized in that the electric field unit has a channel extending along the axial direction, a side wall is formed around the channel, and the side wall is provided with an air inlet for gas to enter the channel and an air outlet for gas to discharge the channel.

[0031] According to another aspect of the present invention, there is provided an electric field unit assembly, characterized in that the electric field unit assembly comprises an electric field unit and an auxiliary adsorption mechanism, the electric field unit is provided with an air inlet for gas to enter and / or an air outlet for gas to discharge, the auxiliary adsorption mechanism has a porous structure and is arranged on one side of at least a portion of the electric field unit, the at least a portion being provided with the air inlet and / or the air outlet.

[0032] In one embodiment, there is a gap between the auxiliary adsorption mechanism and the at least a portion of the electric field unit.

[0033] In one embodiment, a distance between the auxiliary adsorption mechanism and the at least a portion of the electric field unit is less than or equal to 50 mm.

[0034] In one embodiment, the auxiliary adsorption mechanism is attached to the at least a portion of the surface of the electric field unit.

[0035] In one embodiment, the auxiliary adsorption mechanism has a porous structure that overlaps and penetrates each other.

[0036] In one embodiment, the auxiliary adsorption mechanism is made of conductive material and / or electret material.

[0037] In one embodiment, the electric field unit constitutes the cathode or anode of the electric field.

[0038] In one embodiment, the electric field unit constitutes the anode or cathode of the electric field, and the electric field unit has an inner surface facing the cathode or anode of the electric field and an outer surface opposite to the inner surface, and the auxiliary adsorption mechanism is arranged on one side of the outer surface of the electric field unit.

[0039] According to another aspect of the present invention, there is provided an electric field unit assembly, characterized in that the electric field unit assembly comprises an electric field unit and an auxiliary adsorption mechanism, the electric field unit having a channel extending in an axial direction, forming a side wall around the channel, the side wall being provided with an air inlet for gas to enter the channel and an air outlet for gas to discharge from the channel, the auxiliary adsorption mechanism having a porous structure and being arranged on one side of at least a portion of the side wall of the electric field unit, the at least a portion being provided with the air inlet and / or the air outlet.

[0040] In one embodiment, there is a gap between the auxiliary adsorption mechanism and the at least a portion of the electric field unit.

[0041] In one embodiment, a distance between the auxiliary adsorption mechanism and the at least a portion of the electric field unit is less than or equal to 50 mm.

[0042] In one embodiment, the auxiliary adsorption mechanism is attached to the at least a portion of the surface of the electric field unit.

[0043] In one embodiment, the electric field unit has a plurality of side walls, the air inlet and the air outlet are respectively arranged on different side walls of the electric field unit, and the auxiliary adsorption mechanism is arranged on one side of at least a portion of the outer surface and / or inner surface of the side wall where the air inlet and / or air outlet are provided.

[0044] In one embodiment, the auxiliary adsorption mechanism is made of conductive material and / or electret material.

[0045] In one embodiment, the auxiliary adsorption mechanism has a porous structure that overlaps and penetrates each other.

[0046] In one embodiment, the electric field unit includes a plurality of side walls, which are connected in sequence so that the channel has a regular polygonal cross-section; preferably, the electric field unit includes at least three side walls; preferably, the electric field unit includes at least six side walls.

[0047] In one embodiment, the electric field unit constitutes the cathode or anode of the electric field.

[0048] According to another aspect of the present invention, there is provided an electric field adsorption device, characterized in that the electric field adsorption device comprises a plurality of electric field units and an auxiliary adsorption mechanism, the electric field unit having a channel extending in an axial direction, forming a side wall around the channel, the side wall being provided with an air inlet for gas to enter the channel and an air outlet for gas to discharge from the channel, the auxiliary adsorption mechanism having a porous structure and being arranged on one side of at least a portion of at least one side wall of at least one of the electric field units, the at least a portion being provided with the air inlet and / or the air outlet.

[0049] In one embodiment, the electric field adsorption device includes a first type of side wall and a second type of side wall, the channel is arranged on one side of the first type of side wall, and one channel is arranged on each side of the second type of side wall, the first type of side wall has an inner surface facing the channel and an outer surface opposite to the inner surface, and the auxiliary adsorption mechanism is arranged on one side of at least a portion of the outer surface of the first type of side wall.

[0050] In one embodiment, a gap is provided between the auxiliary adsorption mechanism and the at least a portion of the outer surface of the first type side wall.

[0051] In one embodiment, a distance between the auxiliary adsorption mechanism and the at least a portion of the outer surface of the first type side wall is less than or equal to 50 mm.

[0052] In one embodiment, the auxiliary adsorption mechanism is attached to the at least a portion of the outer surface of the first type of side wall.

[0053] In one embodiment, the auxiliary adsorption mechanism is also arranged on one side of the at least a portion of the second type side wall.

[0054] In one embodiment, there is a gap between the auxiliary adsorption mechanism and the at least a portion of the second type of side wall.

[0055] In one embodiment, a distance between the auxiliary adsorption mechanism and the at least a portion of the second type of side wall is less than or equal to 50 mm.

[0056] In one embodiment, the auxiliary adsorption mechanism is arranged to be attached to at least a portion of the second type of side wall.

[0057] In one embodiment, each of the channels is surrounded by a plurality of the side walls; preferably, the channel has a polygonal cross-section; preferably, the polygon is a triangle, a quadrilateral, a pentagon or a hexagon; preferably, the polygon is a regular polygon.

[0058] In one embodiment, the auxiliary adsorption mechanism has a porous structure that overlaps and penetrates each other.

[0059] In one embodiment, the auxiliary adsorption mechanism is made of conductive material and / or electret material.

[0060] In one embodiment, the electric field unit constitutes the cathode and / or the anode of the electric field.

[0061] According to another aspect of the present invention, there is provided an electric field device, comprising a discharge electrode and an adsorption electrode, wherein the adsorption electrode is composed of the electric field unit assembly described in any one of the embodiments, and the discharge electrode is composed of a conductor.

[0062] According to another aspect of the present invention, there is provided an electric field device, comprising a discharge electrode and an adsorption electrode, wherein the adsorption electrode is composed of the electric field unit assembly described in any one of the embodiments, and the discharge electrode is composed of a conductor arranged in the channel and extending along the channel.

[0063] In one embodiment, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel; preferably, the channel has a regular polygonal cross-section, and the discharge electrode passes through the center of the inscribed circle of the cross-section.

[0064] According to another aspect of the present invention, there is provided an electric field device, comprising a discharge electrode and an adsorption electrode, characterized in that the adsorption electrode is composed of the electric field adsorption device described in any one of the embodiments, and the discharge electrode is composed of a conductor arranged in each of the channels and extending along the channels.

[0065] In one embodiment, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel; preferably, the channel has a regular polygonal cross-section, and the discharge electrode passes through the center of the inscribed circle of the cross-section.

[0066] In one embodiment, the gas processing electric field device further comprises a top plate and a bottom plate, wherein the top plate and the bottom plate are respectively connected to two ends of the electric field adsorption device and seal the two ends of the channel.

[0067] According to another aspect of the present invention, there is provided an electric field unit, characterized in that the electric field unit has a channel extending in an axial direction, and a plurality of side walls are formed around the channel, the plurality of side walls are connected in sequence by connecting members, and at least one side wall is provided with an air inlet hole for gas to enter the channel, and at least one side wall is provided with an air outlet hole for gas to flow out of the channel.

[0068] In one embodiment, each of the side walls has a side wall body and folded edges formed by bending the side wall body at two ends perpendicular to the channel, and the connecting member is arranged at the folded edges of two adjacent side walls to fixedly connect the two adjacent side walls.

[0069] In one embodiment, the plurality of side walls are riveted in sequence by rivets.

[0070] In one embodiment, the electric field unit comprises three side walls, and the three side walls are sequentially connected to form a channel with a triangular cross-section; or

[0071] The electric field unit comprises six side walls, and the six side walls are connected in sequence to form a channel with a hexagonal cross section.

[0072] In one embodiment, the three side walls are sequentially connected to form a channel with a regular triangle cross-section.

[0073] In one embodiment, the six side walls are connected in sequence to form a channel with a regular hexagonal cross-section.

[0074] In one embodiment, the folded edge portion is provided with a plurality of through holes along the extension direction of the channel, and the connecting member is passed through the through holes.

[0075] In one embodiment, the plurality of air inlet holes and / or the plurality of air outlet holes are evenly distributed along the axial direction of the channel.

[0076] In one embodiment, the air inlet and / or the air outlet are in a circular, elliptical and / or polygonal shape, and the polygon includes any one or more of a triangle, a quadrilateral, a pentagon and a hexagon.

[0077] According to another aspect of the present invention, there is provided an electric field device, characterized in that the electric field device comprises a discharge electrode and an adsorption electrode, the adsorption electrode is the electric field unit described in any one of the embodiments, the discharge electrode is arranged in a channel of the electric field unit, and an electric field is formed between the discharge electrode and the adsorption electrode.

[0078] In one embodiment, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel.

[0079] In one embodiment, the channel has a regular polygonal cross section, and the discharge electrode passes through the center of a circle inscribed in the cross section.

[0080] According to another aspect of the present invention, there is provided an electric field adsorption device, characterized in that the electric field adsorption device is composed of a plurality of electric field units described in any one of the embodiments connected together.

[0081] In one embodiment, the plurality of electric field units are connected by a connector.

[0082] In one embodiment, the plurality of electric field units are riveted together by rivets.

[0083] In one embodiment, two adjacent channels of the plurality of electric field units share a side wall.

[0084] According to another aspect of the present invention, there is provided an electric field device, characterized in that it comprises a discharge electrode and an adsorption electrode, the adsorption electrode is the electric field adsorption device described in any one of the embodiments, the discharge electrode is arranged in the channel of the electric field unit, and an electric field is formed between the discharge electrode and the electric field unit.

[0085] In one embodiment, the discharge electrode is in the shape of a thin strip and is made of any one of 304 stainless steel, titanium, tungsten, and iridium.

[0086] According to another aspect of the present invention, there is provided an electric field adsorption device, characterized in that it comprises a plurality of electric field units, a plurality of connecting members and at least one auxiliary adsorption member, the electric field unit being provided with an air inlet for gas to enter and / or an air outlet for gas to discharge, the auxiliary adsorption member having a porous structure and being arranged on at least a portion of the surface of the electric field unit through the connecting members, the at least a portion being provided with the air inlet and / or air outlet.

[0087] In one embodiment, there is a gap between the auxiliary adsorption element and a surface of the electric field unit.

[0088] In one embodiment, the electric field unit has a channel extending axially, with multiple side walls formed around the channel. The multiple side walls are connected in sequence by the connecting member and at least one side wall is provided with an air inlet hole for gas to enter the channel and at least one side wall is provided with an air outlet hole for gas to flow out of the channel.

[0089] In one embodiment, the connecting member is any one or a combination of an elastic member, a connecting assembly and a clamp.

[0090] In one embodiment, the inner cross-section of the clamp is groove-shaped.

[0091] In one embodiment, the connection assembly comprises a rivet or a bolt.

[0092] In one embodiment, the electric field unit has multiple side walls, and both ends of the side walls have bent folded portions. The folded portions of two adjacent side walls in the electric field unit are connected to form a connecting end, and the folded portions in the connecting ends of two adjacent electric field units are aligned in sequence to form a unit connecting end. Two adjacent electric field units are connected at the unit connecting end, and the auxiliary adsorption component is arranged on the outside of the unit connecting end. The multiple folded portions in the unit connecting end and the auxiliary adsorption component are connected and fixed by rivets.

[0093] In one embodiment, a gasket is further included, and the gasket is arranged between the rivet and the auxiliary adsorption member.

[0094] In one embodiment, the gasket is in sheet form.

[0095] In one embodiment, the gasket has an L-shaped cross-section.

[0096] According to another aspect of the present invention, there is provided an electric field unit, characterized in that the electric field unit has a channel extending in an axial direction, and a plurality of side walls are formed around the channel, the plurality of side walls are provided with an air inlet hole for gas to enter the channel and an air outlet hole for gas to discharge from the channel, wherein at least one of the plurality of side walls is not provided with the air inlet hole or the air outlet hole on a midline extending along the channel direction.

[0097] In one embodiment, the air inlet and the air outlet are disposed on different side walls.

[0098] In one embodiment, a plurality of the air inlet holes are arranged on the side wall where the air inlet hole is arranged, and / or a plurality of the air outlet holes are arranged on the side wall where the air outlet hole is arranged.

[0099] In one embodiment, the air inlet or the air outlet is not provided within a predetermined range on both sides of a center line of each side wall extending along the channel direction.

[0100] In one embodiment, a same side wall is provided with a plurality of the air inlet holes and / or a plurality of air outlet holes, and the plurality of air inlet holes and / or the plurality of air outlet holes are respectively arranged in a plurality of rows along the axial direction of the channel.

[0101] In one embodiment, the plurality of air inlet holes or the plurality of air outlet holes on each side wall are arranged in two rows along the axial direction and are respectively disposed on both sides of the center line of the side wall.

[0102] In one embodiment, the plurality of air inlet holes or the plurality of air outlet holes are evenly distributed along the axial direction.

[0103] In one embodiment, the air inlet and / or the air outlet are / is in a circular, elliptical or polygonal shape. Preferably, the polygon includes any one or more of a triangle, a quadrilateral, a pentagon and a hexagon.

[0104] In one embodiment, the ratio of the total area of ​​the air inlet holes and / or the air outlet holes on one side wall to the total area of ​​the side wall is less than or equal to 49%.

[0105] In one embodiment, the cross-section of the channel is a polygon, and the polygon includes a triangle, a quadrilateral, a pentagon or a hexagon.

[0106] In one embodiment, the side wall is made of a material including stainless steel and / or aluminum.

[0107] According to another aspect of the present invention, there is provided an electric field unit, characterized in that the electric field unit has a channel extending in the axial direction, and a plurality of side walls are formed around the channel, the plurality of side walls are connected in sequence and are provided with air inlet holes for gas to enter the channel and air outlet holes for gas to discharge from the channel, wherein two rows of air inlet holes or air outlet holes are axially arranged on each side wall, and the two rows of air inlet holes or air outlet holes on each side wall are arranged on both sides of the center line of the side wall along the channel direction.

[0108] In one embodiment, the electric field unit has six side walls formed around the channel, and the channel has a regular hexagonal cross-section.

[0109] In one embodiment, the electric field unit has three side walls formed around the channel, and the channel has a regular triangle cross-section.

[0110] According to another aspect of the present invention, there is provided an electric field device, characterized in that it comprises a discharge electrode and an adsorption electrode, the adsorption electrode being the electric field unit according to any one of the embodiments, wherein an electric field is formed between the discharge electrode and the adsorption electrode.

[0111] In one embodiment, the discharge electrode is arranged in a channel of the electric field unit.

[0112] According to another aspect of the present invention, there is provided an electric field device, characterized in that it comprises a discharge electrode and an adsorption electrode, the adsorption electrode being the electric field unit described in any one of the embodiments, the discharge electrode being arranged in a channel of the electric field unit, and the air inlet or the air outlet being not arranged at the closest distance between the discharge electrode and the side wall.

[0113] In one embodiment, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel.

[0114] In one embodiment, the channel has a regular polygonal cross section, and the discharge electrode passes through the center of a circle inscribed in the cross section.

[0115] According to another aspect of the present invention, there is provided an electric field adsorption device, characterized in that it is an integral structure formed by connecting a plurality of electric field units, wherein the electric field unit is the electric field unit described in any one of the embodiments.

[0116] In one embodiment, two adjacent electric field units share a side wall, and two surfaces of the side wall face the channels of the two electric field units respectively.

[0117] According to another aspect of the present invention, there is provided an electric field device, characterized in that it comprises a discharge electrode and an adsorption electrode, the adsorption electrode is the electric field adsorption device described in any one of the embodiments, the discharge electrode is arranged in a channel of the electric field unit, and an electric field is formed between the discharge electrode and the electric field unit.

[0118] In one embodiment, the discharge electrode is in the shape of an elongated strip and is made of any one or more of 304 stainless steel, titanium, tungsten, and iridium. BRIEF DESCRIPTION OF THE DRAWINGS

[0119] Figure 1 is a three-dimensional schematic diagram of an electric field device according to an embodiment of the present invention;

[0120] Figure 2A is a three-dimensional schematic diagram of an electric field unit according to an embodiment of the present invention;

[0121] Figure 2B yes Figure 2A C-direction view of the electric field unit;

[0122] Figure 3 is a schematic top cross-sectional view of an electric field device according to an embodiment of the present invention;

[0123] Figure 4A is a three-dimensional schematic diagram of an electric field device according to an embodiment of the present invention;

[0124] Figure 4B yes Figure 4A A schematic cross-sectional view of

[0125] Figure 5 is a front schematic view of an electric field device including a top plate and a floor;

[0126] Figure 6 is a cross-sectional exploded schematic diagram of an electric field unit assembly according to an embodiment of the present invention;

[0127] Figure 7 is a three-dimensional exploded schematic diagram of an electric field adsorption device according to an embodiment of the present invention;

[0128] Figure 8 is a three-dimensional exploded schematic diagram of an electric field adsorption device according to an embodiment of the present invention;

[0129] Fig. 9A is a three-dimensional schematic diagram of an electric field adsorption device according to an embodiment of the present invention;

[0130] Fig. 9B yes Fig. 9A A top view of

[0131] Fig.10 is a three-dimensional schematic diagram of an electric field device according to an embodiment of the present invention;

[0132] Fig.11 is a three-dimensional schematic diagram of an electric field adsorption device according to an embodiment of the present invention;

[0133] Fig.12 yes Fig.11 Schematic diagram of the three-dimensional decomposition of

[0134] Fig.13 is a schematic cross-sectional view of a card according to an embodiment of the present invention;

[0135] Fig.14 is a schematic cross-sectional view of an elastic member according to an embodiment of the present invention;

[0136] Fig.15 1 is a schematic cross-sectional view of an elastic member according to an embodiment of the present invention. DETAILED DESCRIPTION

[0137] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0138] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0139] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0140] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0141] According to one aspect of the present invention, an electric field unit is provided. The electric field unit has a channel extending in an axial direction. A side wall is formed around the channel. The side wall is provided with an air inlet for gas to enter the channel and an air outlet for gas to exit the channel.

[0142] It should be noted that the gas does not flow along the axial direction of the channel, which can be understood as the gas does not flow from one end of the channel to the other end of the channel along the axial direction of the channel; the gas enters the channel through the air inlet and then exits the channel through the air outlet.

[0143] It should be noted that the above-mentioned electric field unit can be used as the adsorption electrode of the electric field device. The discharge electrode of the electric field device discharges and ionizes. After the particulate matter in the gas combines with the charged ions, the particulate matter in the gas acquires an electric charge, and the charged particulate matter moves toward the adsorption electrode and is deposited on the adsorption electrode. When the gas enters in a direction that is not parallel to the side wall of the electric field unit, that is, the gas entry direction is not perpendicular to the ion flow direction in the electric field, compared with the electric field in which the gas entry direction is perpendicular to the ion flow direction, the present invention increases the residence time of the gas in the electric field, can improve the charging efficiency of the particulate matter, and more particulate matter is deposited on the adsorption electrode, thereby improving the dust removal efficiency.

[0144] It should also be noted that when the center of the air inlet and the center of the air outlet are arranged on different planes perpendicular to the axial direction, the gas flow in the channel can be disturbed, further increasing the residence time of the gas in the electric field, increasing the frequency of close contact with the discharge electrode, and improving the charging efficiency and charge amount of the particles; and when the gas forms a cyclonic flow, it is conducive to the separation of large particles. Combining the above two points, the dust removal efficiency can be effectively improved. It should also be noted that at least one of the multiple side walls is not provided with an air inlet or the air outlet on the center line extending along the channel direction, so that the area at the center line position is not missing. After the particles are charged, they are directly adsorbed to the position near the center line of the adsorption electrode, increasing the adsorption amount of the particles on the adsorption electrode, thereby improving the dust removal efficiency. Among them, the particles include but are not limited to solid particles, droplets, solid particles attached with liquid, aerosols, solid particles or droplets in plasma state, etc., and can also be microorganisms such as bacteria and fungi.

[0145] Figure 1 : is a three-dimensional schematic diagram of an electric field device of an embodiment of the present invention, the electric field device 20 includes a discharge electrode 209 and an adsorption electrode 200, the adsorption electrode 200 is composed of an electric field adsorption device, in this embodiment, the adsorption electrode 200 is also referred to as an electric field adsorption device 200. Among them, the electric field adsorption device 200 includes twelve electric field units 2000, the twelve electric field units 2000 are arranged adjacent to each other on the left and right, the adjacent electric field units 2000 share a side wall, and the channel of each electric field unit 2000 is surrounded by the side wall to form a cross-section perpendicular to the axial direction, which is an equilateral triangle. In other embodiments, the number of electric field units in the electric field adsorption device is not limited thereto, and the number of electric field units can be adjusted according to the actual amount of gas to be purified, and the arrangement of multiple electric field units can be adjacently arranged and / or non-adjacently arranged in any direction of up, down, left, right, front, and back. In this embodiment, in order to facilitate production and processing, the structures and shapes of the twelve electric field units are the same. However, in other embodiments, depending on the storage conditions of the device space or other factors, the structures and sizes of multiple electric field units may be different or partially the same.

[0146] Reference Figure 1, the structures of the first electric field unit 2100 and the second electric field unit 2200 are taken as an example for description, and the structures of other electric field units are similar. The first electric field unit 2100 has a first channel 2110 extending in an axial direction, and the axial direction is the same as the direction of the central axis of the electric field unit 2100 extending in the direction of the first channel 2110. A side wall 2120 is formed around the first channel 2110, and the side wall 2120 is provided with a first air inlet 213 for gas to enter the channel 2110 and a first air outlet 214 for gas to exit the channel. The number of the first air inlet 213 and the first air outlet 214 is multiple. Preferably, the multiple first air inlet 213 and the multiple first air outlet 214 have the same aperture size, the multiple first air inlet 213 are evenly arranged in a row on the first side wall 2121 along the axial direction, and the multiple first air outlet 214 are evenly arranged in a row on the second side wall 2122 along the axial direction. No air inlet or air outlet is set on the third side wall 2123, and the center of the first air inlet 213 and the center of the first air outlet 214 are arranged on different planes perpendicular to the axial direction. The first electric field unit 2100 and the second adsorption unit 2200 share the second side wall 2122, and the two surfaces of the second side wall 2122 respectively face the first channel 2110 of the first electric field unit 2100 and the second channel 2210 of the second electric field unit 2200. That is to say, the first air outlet 214 on the second side wall 2122 of the first adsorption unit 2100 is used as the second air inlet of the second side wall 2122 of the second adsorption unit 2200 to ensure that the gas directly enters the second electric field unit 2200 from the first electric field unit 2100, and a plurality of second air outlet holes 224 uniformly arranged in a row along the axial direction are provided on the fourth side wall 2222 of the second adsorption unit 2200, and no air inlet and / or air outlet are provided on the fifth side wall 2223 of the second adsorption unit 2200.

[0147] Reference Figure 1 , each discharge electrode 209 is arranged in the channel of the corresponding electric field unit 2000. Since the channel of each electric field unit 2000 is surrounded by the side wall to form a regular triangle with a cross section perpendicular to the axial direction, the discharge electrode 209 is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross section of the corresponding electric field unit 2000. The discharge efficiency here is the highest. It should be noted that the cross section here refers to the cross section of the electric field unit 2000 perpendicular to the axial direction of the channel. For example, the first discharge electrode 219 is arranged in the channel of the first electric field unit 2100, and is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross section of the first electric field unit 2100. The relationship between other discharge electrodes and electric field units is similar to this and will not be described in detail here.

[0148] Continue to refer to Figure 1, all electric field units 2000 are electrically connected to the same pole of the power supply, and all discharge electrodes 209 are electrically connected to the other pole of the power supply. For example, taking the first electric field unit 2100 and the second electric field unit 2200 as an example, the first electric field unit 2100 is electrically connected to the anode of the power supply, and the first discharge electrode 219 is electrically connected to the cathode of the power supply; and the second electric field unit 2200 is electrically connected to the anode of the power supply, and the second discharge electrode 229 is electrically connected to the cathode of the power supply. The first electric field unit 2100 and the first discharge electrode 219 form a first electric field, and the second electric field unit 2200 and the second discharge electrode 229 form a second electric field.

[0149] However, in other embodiments, the plurality of electric field units can be divided into two groups, and the two groups of electric field units are arranged in two or more rows and combined together. In the same group, the first group of electric field units is electrically connected to the anode of the power supply, and the corresponding first group of discharge electrodes is electrically connected to the cathode of the power supply; the second group of electric field units is electrically connected to the cathode of the power supply, and the corresponding second group of discharge electrodes is electrically connected to the anode of the power supply. When the airflow passes through the electric field formed by the first group of electric field units and the first group of discharge electrodes and the electric field formed by the second group of electric field units and the second group of discharge electrodes, the particles in the gas are respectively charged with negative and positive charges, so that the negatively charged particles in the gas are deposited on the first group of electric field units, and the positively charged particles in the gas are deposited on the second group of electric field units, thereby improving the dust removal efficiency.

[0150] Reference Figure 1 , taking the gas direction of the first electric field unit 2100 and the second electric field unit 2200 as an example, the gas direction of other electric field units is similar to this time and will not be described in detail. Since the centers of the first air inlet 213 and the first air outlet 214 in the first electric field are arranged on different planes perpendicular to the axial direction, and the centers of the second air inlet and the second air outlet 224 in the second electric field are arranged on different planes perpendicular to the axial direction, the gas flow direction of the gas passing through the first electric field and the second electric field successively is disordered, which further increases the residence time of the gas in the two electric fields, and increases the frequency of close contact with the first discharge electrode 219 and the second discharge electrode 229. The closer to the discharge electrode 209, the higher the gas ionization efficiency, which improves the particle charging efficiency and charge; and when the gas forms a cyclonic flow, it is conducive to the separation of large particles. Combining the above two points, the dust removal efficiency is effectively improved.

[0151] In other embodiments, an air inlet may be provided on the fifth side wall 2223 of the second electric field unit 2200, so that the airflows of the second electric field unit 2200 and the third electric field unit 2300 are connected, and the gas may flow from the third electric field unit 2300 to the second electric field unit 2200. However, in other embodiments, an air inlet or an air outlet may be provided on the side wall of each electric field unit, so that the gas of each electric field unit may come from a plurality of adjacent electric field units or may flow to a plurality of adjacent electric field units, and the gas flow direction is highly turbulent, and the airflow passing near the discharge electrode becomes more, thereby increasing the charging efficiency and the amount of the particles in the gas, and improving the dust removal efficiency.

[0152] Figure 2A It is a three-dimensional schematic diagram of an electric field unit of an embodiment of the present invention, wherein the electric field unit 710 has a channel 711 extending along the axial direction, and a side wall 712 is formed around the channel 711, and the side wall 712 is provided with an air inlet 713 for gas to enter the channel 711 and an air outlet 714 for gas to exit the channel 711, and the center of the air inlet hole 713 and the center of the air outlet hole 714 are arranged on different planes perpendicular to the axial direction.

[0153] Reference Figure 2A The electric field unit 710 has a channel 711 extending in the axial direction, and the axial direction is the same as the direction of the central axis of the electric field unit 710 extending in the channel direction. Three side walls 712 are formed around the channel 711, including a first side wall 7121, a second side wall 7122 and a third side wall 7123. The first side wall 7121, the second side wall 7122 and the third side wall 7123 have equal lengths along the axial direction of the electric field unit 710. The cross section of the channel 711 surrounded by the first side wall 7121, the second side wall 7122 and the third side wall 7123 is preferably an equilateral triangle, and the cross section refers to a cross section perpendicular to the axial direction. However, in other embodiments, the electric field unit may also include more than three side walls, for example, the electric field unit may include three, four, five or six, or even more side walls, and the cross section of the channel surrounded by the side walls may be a triangle, a quadrilateral, a pentagon, or a hexagon, as well as other polygons. Preferably, the cross-section of the channel surrounded by the side walls is a regular polygon; the electric field unit may also include only one side wall, that is, the cross-section of the channel surrounded by the side walls is circular or elliptical; preferably, the internal angle of the cross-section of the regular polygon formed by the channel surrounded by the side walls is an integer divisor of the number 360, which is conducive to 360-degree seamless splicing of multiple electric field units in a plane, simplifying the manufacturing process; more preferably, the cross-section of the channel surrounded by the side walls is an equilateral triangle or a regular hexagon.

[0154] In one embodiment, the first side wall 7121, the second side wall 7122 and the third side wall 7123 have a side wall body and a folded edge portion formed by bending the side wall body along two ends perpendicular to the channel, and the connecting piece is arranged at the folded edge portion of two adjacent side walls to fix the two adjacent side walls. The side walls connected by the connecting piece can not only be standardized and mass-produced, but also conveniently processed and highly efficient, and the connecting piece connection has the advantages of simple assembly and detachable packaging and transportation.

[0155] Reference Figure 2A The first side wall 7121 has a first side wall main body 71211 and a first side wall left folded edge portion 71212 and a first side wall right folded edge portion 71213 respectively bent from two ends of the first side wall main body 71211, the second side wall 7122 has a second side wall main body 71221 and a second side wall left folded edge portion 71222 and a second side wall right folded edge portion 71223 respectively bent from two ends of the second side wall main body 71221, the third side wall 7123 has a third side wall main body 71231 and a third side wall left folded edge portion 71232 and a third side wall right folded edge portion 71233 respectively bent from two ends of the third side wall main body 71231. The first side wall left folding portion 71212 and the first side wall right folding portion 71213 are parallel to each other, the second side wall left folding portion 71222 and the second side wall right folding portion 71223 are parallel to each other, and the third side wall left folding portion 71232 and the third side wall right folding portion 71233 are parallel to each other and perpendicular to the third side wall body 71231. It should be noted that the "left" and "right" here are only used to distinguish the two folding portions and do not constitute a limitation on the orientation.

[0156] Continue to refer to Figure 2A , the folded edge portion of each side wall extends along the extension direction of the channel 711, and the folded edge portions of two adjacent side walls are aligned and matched and connected by a connecting piece, so that the two adjacent side walls are fixedly connected by the folded edge portion and the connecting piece. For example, a plurality of through holes 718 arranged along the extension direction of the channel are respectively provided on each folded edge portion, and the connecting piece is penetrated and fixed in the through holes 718, so as to fix the adjacent side walls. Preferably, each folded edge portion is respectively provided with a through hole 718 at both ends along the channel. Preferably, through holes are provided at the ends of each folded edge portion. The connecting piece can be a rivet, a screw, etc., and the two adjacent side walls are connected by rivet connection, bolt connection, screw connection, etc. In this embodiment, the two adjacent side walls are riveted in sequence by rivets.

[0157] Reference Figure 2A , Figure 3In this embodiment, the first side wall right folding portion 71213 of the first side wall 7121 and the second side wall right folding portion 71223 of the second side wall 7122 are riveted together by rivets 99 to form a connection top end. The left folding portion 71222 of the second side wall 7122 and the left folding portion 71232 of the third side wall 7123 are riveted together by rivets 99 to form a first connection bottom end. The left folding portion 71212 of the first side wall 7121 and the right folding portion 71233 of the third side wall 7123 are riveted together by rivets 99 to form a second connection bottom end.

[0158] In one embodiment, referring to Figure 2A The side wall 712 is provided with an air inlet 713 for gas to enter the channel 711 and an air outlet 714 for gas to exit the channel 711. The air inlet 713 and the air outlet 714 are preferably arranged on different side walls respectively. For example, the air inlet 713 is arranged on the third side wall 7123, and the air outlet 714 includes a first air outlet 7141 and a second air outlet 7142. The first air outlet 7141 is arranged on the first side wall 7121, and the second air outlet 7142 is arranged on the second side wall 7122. In the present embodiment, the three side walls of the electric field unit 710 are all arranged with air inlets 713 or air outlets 714. However, it should be understood that in other embodiments, the air inlets and / or air outlets may be arranged on part of the side walls of the electric field unit, for example, the air inlet 713 is arranged on the third side wall 7123, the first air outlet 7141 is arranged on the first side wall 7121, and the second air outlet 7142 is no longer arranged on the second side wall 7122, or the air inlet 713 is arranged on the third side wall 7123, the second air outlet 7142 is arranged on the second side wall 7122, and the first air outlet 7141 is no longer arranged on the first side wall 7121. In addition, in other embodiments, the air inlet and the air outlet may also be arranged at different positions on the same side wall, for example, the air inlet is arranged on the upper part of the side wall and the air outlet is arranged on the lower part of the side wall, or the air inlet is arranged on the left side of the side wall and the air outlet is arranged on the right side of the side wall. It should be understood by those skilled in the art that the positions of the air inlet and the air outlet are not limited to the above-mentioned positions.

[0159] In one embodiment, see Figure 2A , at least one of the multiple side walls has no air inlet or air outlet on its midline extending in the channel direction, and the distance between the midline on the side wall and the centerline of the channel is the shortest. Preferably, each side wall has no air inlet or air outlet within a range of 2-50 mm on both sides of the midline extending in the channel direction.

[0160] Reference Figure 2AThe side wall provided with air inlet holes, for example, the third side wall 7123 is provided with a plurality of air inlet holes 713; the side wall provided with air outlet holes, for example, the first side wall 7121 and the second side wall 7122, is provided with a plurality of air outlet holes 714. The plurality of air inlet holes 713 are evenly arranged in two rows on the third side wall 7123 along the axial direction, the plurality of first air outlet holes 7141 are evenly arranged in two rows on the first side wall 7121 along the axial direction, and the plurality of second air outlet holes 7142 are evenly arranged in two rows on the second side wall 7122 along the axial direction. Preferably, two rows of air inlet holes and / or air outlet holes are respectively arranged on both sides of the center line of the side wall. For example, multiple first air inlet holes 7141 are arranged in two rows and are arranged on both sides of a certain distance from the center line of the first side wall 7121, and the two rows of first air inlet holes 7141 are preferably arranged symmetrically with respect to the center line of the first side wall 7121. In other embodiments, multiple air inlet holes and / or air outlet holes may also be arranged axially into one row or any number of rows above one row, and the air inlet holes and / or air outlet holes may also be arranged on the side wall in a non-uniform manner. In the present embodiment, a plurality of air inlet holes 713 are axially arranged from one end of the third side wall 7123 to the other end of the third side wall 7123, a plurality of first air outlet holes 7141 are axially arranged from one end of the first side wall 7121 to the other end of the first side wall 7121, and a plurality of second air outlet holes 7142 are axially arranged from one end of the second side wall 7122 to the other end of the second side wall 7122. In other embodiments, the air inlet holes or the air outlet holes may also be axially distributed on a part of the side wall according to the actual needs of air intake or exhaust.

[0161] Figure 2B yes Figure 2A The C-direction view of the electric field unit is as follows: Figure 2B As shown, the center of the air inlet 713 and the center of the air outlet 714 are arranged on different planes perpendicular to the axial direction, that is, the line connecting the center of the air inlet 713 and the center of the air outlet 714 is not perpendicular to the axial direction. This structure allows the gas to enter the internal channel of the electric field unit 710 through the air inlet 713 when the gas is inhaled in a direction that is not parallel to the side wall of the electric field unit, and the gas cannot be discharged directly through the air outlet, which makes the gas flow turbulent, increases the residence time in the channel, and even forms a cyclonic gas flow, and then discharges the electric field unit 710 through the air outlet 714. In this embodiment, the center of the air inlet 713 and the centers of the first air outlet 7141 and the second air outlet 7142 are arranged on different planes perpendicular to the axial direction, and the centers of the first air outlet 7141 and the second air outlet 7142 can be arranged on the same plane perpendicular to the axial direction, or on different planes perpendicular to the axial direction. When there are multiple air inlet holes 713 and multiple air outlet holes 714, preferably, the center of any air inlet hole and the center of any air outlet hole are arranged on different planes perpendicular to the axial direction.

[0162] Reference Figure 2B, the air inlet 713 and the air outlet 714 are circular holes with the same diameter. However, in other embodiments, the air inlet and the air outlet may be elliptical holes, triangular holes, quadrilateral holes or pentagonal holes; the diameters of the air inlet and the air outlet may also be different, but it is necessary to ensure that the gas cannot be discharged directly through the air outlet without obstruction, that is, if the two side walls are overlapped, the air inlet and the air outlet will not completely overlap or one air inlet / air outlet completely contains another air outlet or air inlet, so as to ensure that the gas will encounter obstruction when flowing, so that when the airflow flows into the air inlet and flows out of the air outlet, it changes direction and forms a cyclone path in the channel, and then discharges the electric field unit through the air outlet.

[0163] In one embodiment, the ratio of the total area of ​​the air inlet or outlet holes on a side wall to the total area of ​​the side wall is less than or equal to a certain value. After a large number of experiments and in-depth research, the inventor unexpectedly found that when the total area of ​​the air inlet or outlet holes on a side wall is set to be less than or equal to 49% of the total area of ​​the side wall, preferably in the range of 40%-49%, and more preferably equal to 49%, the ventilation volume is increased and the strength and rigidity of the side wall can be maximized.

[0164] In one embodiment, the side wall is made of a conductive material, such as a material containing stainless steel and / or aluminum. Preferably, aluminum has the advantage of low energy consumption.

[0165] Figure 3 It is a top view cross-sectional schematic diagram of an electric field device of an embodiment of the present invention. The electric field device 700 includes a discharge electrode 719 and an adsorption electrode 710. The adsorption electrode 710 is composed of an electric field unit. In this embodiment, the adsorption electrode 710 can also be referred to as the electric field unit 710. The similarities between the electric field unit and the above are not repeated here. This embodiment only describes the differences.

[0166] like Figure 3As shown, a discharge electrode 719 is provided in the channel 711 of the electric field unit 710. In this embodiment, the cross section of the channel 711 surrounded by the sidewalls and perpendicular to the axial direction is an equilateral triangle. The discharge electrode 719 is preferably arranged parallel to the sidewalls of the channel and passes through the center of the inscribed circle of the cross section. The discharge efficiency here is the highest. However, in other embodiments, the cross section of the channel surrounded by the sidewalls and perpendicular to the axial direction can be other polygons. The discharge electrode is arranged parallel to the sidewalls of the channel and passes through the center line of the channel. The center line is a line extending along the axial direction of the channel and passing through the midpoint of the polygonal cross section. For example, when the cross section of the channel surrounded by the sidewalls and perpendicular to the axial direction is a rectangle, the center line is a line extending along the axial direction of the channel and passing through the intersection of the long side symmetry axis and the short side symmetry axis of the rectangular cross section. When the cross section of the channel surrounded by the sidewalls and perpendicular to the axial direction is a triangle, the center line is a line extending along the axial direction of the channel and passing through the intersection of the angle bisectors of the triangular cross section. Preferably, when the cross section of the channel surrounded by the side wall and perpendicular to the axial direction is a regular polygon, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross section. It can be understood by those skilled in the art that due to the limitations of actual processing conditions, the discharge electrode may be arranged slightly away from the center line of the channel or the center of the inscribed circle of the cross section.

[0167] In this embodiment, the discharge electrode 719 is a slender needle-shaped conductor. In other embodiments, the discharge electrode can also be a polygonal, burr-shaped, threaded rod-shaped or column-shaped conductor. In this embodiment, the diameter of the discharge electrode 719 is 0.1-10 mm, preferably, the diameter of the discharge electrode 719 is 0.2-5 mm.

[0168] In one embodiment, the discharge electrode 719 is in the shape of an elongated strip and is made of any one of 304 stainless steel, titanium, tungsten, and iridium. Preferably, the discharge electrode is made of iridium.

[0169] Reference Figure 3, the electric field unit 710 is electrically connected to one electrode of the power source, the discharge electrode 719 is electrically connected to the other electrode of the power source, and the electric field unit 710 and the discharge electrode 719 form an active electric field. Preferably, the electric field unit 710 is electrically connected to the anode of the power source, and the discharge electrode 719 is electrically connected to the cathode of the power source, that is, the electric field unit 710 is the anode and the discharge electrode 719 is the cathode. However, in other embodiments, the electric field unit 710 may also be electrically connected to the cathode of the power source, and the discharge electrode 719 may be electrically connected to the anode of the power source, that is, the electric field unit 710 is the cathode and the discharge electrode 719 is the anode. When the electric field unit 710 is electrically connected to the anode of the power source, and the discharge electrode 719 is electrically connected to the cathode of the power source, the gas enters in a direction that is not parallel to the side wall of the electric field unit 710, and the discharge electrode 719 discharges and ionizes, so that the particles in the gas acquire negative charges, and the negatively charged particles move toward the electric field unit 710 and are deposited on the electric field unit 710. When the center of the air inlet and the center of the air outlet on the side wall of the electric field unit 710 are arranged on different planes perpendicular to the axial direction, the gas flow in the channel 711 can be disturbed, further increasing the residence time of the gas in the channel 711 and the frequency of close contact with the discharge electrode 719. The closer the gas is to the discharge electrode 719, the higher the gas ionization efficiency is, thereby improving the charging efficiency and charge amount of the particles. Moreover, when the gas forms a cyclonic flow, it is beneficial to the separation of large particles. Combining the above two points, the dust removal efficiency is effectively improved.

[0170] Figure 4A 1 is a three-dimensional schematic diagram of an electric field device according to an embodiment of the present invention. The electric field device 80 includes a discharge electrode and an adsorption electrode. In this embodiment, the adsorption electrode and the discharge electrode are the same as those in the above description. Only the differences are described in this embodiment.

[0171] Reference Figure 4A, the adsorption electrode is composed of an electric field adsorption device 800. The electric field adsorption device 800 includes eight electric field units, namely a first electric field unit 810, a second electric field unit 820, a third electric field unit 830, a fourth electric field unit 840, a fifth electric field unit 850, a sixth electric field unit 860, a seventh electric field unit 870 and an eighth electric field unit 880. The eight electric field units are arranged adjacent to each other on the left and right, and the adjacent electric field units share a side wall. The channel of each electric field unit is surrounded by the side wall to form a cross-section perpendicular to the axial direction, which is an equilateral triangle. In other embodiments, the number of electric field units in the electric field adsorption device is not limited thereto, and the number of electric field units can be adjusted according to the actual amount of gas to be purified. Moreover, the arrangement of multiple electric field units can be adjacently arranged and / or non-adjacently arranged in any direction of up, down, left, right, front, and back. In this embodiment, in order to facilitate production and processing, the structures and shapes of the eight electric field units are the same. However, in other embodiments, depending on the storage conditions of the device space or other factors, the structures, shapes, and sizes of the multiple electric field units may be different or partially the same.

[0172] Reference Figure 4A , the discharge electrode 809 includes a first discharge electrode 819, a second discharge electrode 829, a third discharge electrode 839, a fourth discharge electrode 849, a fifth discharge electrode 859, a sixth discharge electrode 869, a seventh discharge electrode 879, and an eighth discharge electrode 889. Each discharge electrode is arranged in the channel of the corresponding electric field unit. Since the channel of each electric field unit is surrounded by the side wall to form a regular triangle with a cross section perpendicular to the axial direction, the discharge electrode 809 is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the corresponding electric field unit cross section, where the discharge efficiency is the highest. For example, the first discharge electrode 819 is arranged in the channel of the first electric field unit 810, and is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross section of the first electric field unit 810. The relationship between other discharge electrodes and electric field units can be deduced by analogy.

[0173] Reference Figure 4A, the structures of the first electric field unit 810 and the second electric field unit 820 are taken as examples for explanation, and the structures of other electric field units are similar. The first electric field unit 810 includes a first channel 811 extending in the axial direction, and a side wall 812 is formed around the first channel 811. The side wall 812 is provided with a first air inlet 813 for gas to enter the channel 811 and a first air outlet 814 for gas to exit the first channel 811. The number of the first air inlet 813 and the first air outlet 814 is multiple, and the multiple first air inlet holes 813 are evenly arranged in two rows on the first side wall 8121 along the axial direction, and the multiple first air outlet holes 814 are evenly arranged in two rows on the second side wall 8122 along the axial direction. There are no air inlet holes or air outlet holes distributed on the third side wall 8123, and the hole center of the first air inlet hole 813 and the hole center of the first air outlet hole 814 are arranged on different planes perpendicular to the axial direction. The first electric field unit 810 and the second electric field unit 810 share the second side wall 8122, and the two surfaces of the second side wall 8122 respectively face the first channel 811 of the first electric field unit 810 and the second channel 821 of the second electric field unit 820. That is to say, the first air outlet 814 on the second side wall 8122 of the first electric field unit 810 is used as the second air inlet of the second side wall 8122 of the second electric field unit 820 to ensure that the gas directly enters the second electric field unit 820 from the first electric field unit 810, and a plurality of second air outlet holes 824 evenly arranged in two rows along the axial direction are provided on the fourth side wall 8222 of the second electric field unit 820, and no air inlet and / or air outlet are provided on the fifth side wall 8223 of the second electric field unit 820.

[0174] Reference Figure 4AIn this embodiment, all electric field units are electrically connected to the same pole of the power supply, and all discharge electrodes are electrically connected to the other pole of the power supply. For example, taking the first electric field unit 810 and the second electric field unit 820 as examples, the first electric field unit 810 is electrically connected to the anode of the power supply, and the first discharge electrode 819 is electrically connected to the cathode of the power supply; the second electric field unit 820 is electrically connected to the anode of the power supply, and the second discharge electrode 829 is electrically connected to the cathode of the power supply. The first electric field unit 810 and the first discharge electrode 819 form a first electric field, and the second electric field unit 820 and the second discharge electrode 829 form a second electric field. However, in other embodiments, multiple electric field units are divided into two groups, and the two groups of electric field units are arranged in two or more rows and combined together. In each row of electric field units, in the same group, the first group of electric field units is electrically connected to the anode of the power supply, and the corresponding first group of discharge electrodes is electrically connected to the cathode of the power supply; the second group of electric field units is electrically connected to the cathode of the power supply, and the corresponding second group of discharge electrodes is electrically connected to the anode of the power supply. When the airflow passes through the electric field formed by the first group of electric field units and the first group of discharge electrodes and the electric field formed by the second group of electric field units and the second group of discharge electrodes in succession, the particles in the gas acquire negative charges and positive charges respectively, so that the particles with negative charges in the gas are deposited on the first group of electric field units, and the particles in the gas that are easily charged with positive charges are deposited on the second group of electric field units, thereby improving the dust removal efficiency.

[0175] Reference Figure 4A, taking the gas direction of the first electric field unit 810 and the second electric field unit 820 as an example, the gas direction of other electric field units is analogous. The gas enters the first electric field through the first air inlet 813, then enters the second electric field through the first air outlet 814, and finally is discharged through the second air outlet 824. Since the hole centers of the first air inlet 813 and the first air outlet 814 are arranged on different planes perpendicular to the axial direction and the hole centers of the second air inlet (in this embodiment, the second air inlet is the first air outlet 814) and the second air outlet 824 are arranged on different planes perpendicular to the axial direction, the gas flow direction of the gas passing through the first electric field and the second electric field is disordered, which further increases the residence time of the gas in the two electric fields, increases the frequency of close contact with the first discharge electrode 819 and the second discharge electrode 829, and the closer to the discharge electrode 809, the higher the gas ionization efficiency, which improves the particle charging efficiency and the amount of charge; and when the gas forms a cyclonic flow direction, it is conducive to the separation of large particles. Combining the above two points, the dust removal efficiency is effectively improved. In other embodiments, an air inlet is provided on the fifth side wall 8223 of the second electric field unit 820, so that the airflows of the second electric field unit 820 and the third electric field unit 830 are connected, and the gas can flow from the third electric field unit 830 to the second electric field unit 820. However, in other embodiments, an air inlet or an air outlet can be provided on the side wall of each electric field unit, so that the gas of each electric field unit can come from multiple adjacent electric field units or flow to multiple adjacent electric field units, and the gas flow direction is highly turbulent, and the airflow passing near the discharge electrode becomes more, which increases the charging efficiency and the amount of particles in the gas, and improves the dust removal efficiency.

[0176] Figure 5 It is a schematic diagram of the main view of an electric field device including a top plate and a floor. The electric field device 80 also includes a top plate 81 and a bottom plate 82. The top plate 81 and the bottom plate 82 are respectively connected to the two ends of the electric field adsorption device 800, that is, they are respectively connected to the two ends of each electric field unit in the electric field adsorption device 80, and the two ends are sealed to ensure that the gas only enters and exits from the air inlet or outlet of each electric field unit. It should be noted that the top plate 81 and the bottom plate 82 are only for the convenience of description and are not intended to limit their orientation. That is, the top 81 does not need to be located at the top, and the bottom plate 82 does not need to be located at the bottom. Specifically, they can be set at the two ends of the electric field adsorption device 800 according to the placement orientation of the electric field device 80 to seal the channel of each electric field unit.

[0177] Figure 61 is a cross-sectional exploded schematic diagram of an electric field unit assembly of an embodiment of the present invention. The electric field unit assembly 900 includes an electric field unit 910 and an auxiliary adsorption mechanism 920. The electric field unit 910 has a channel 911 extending in the axial direction, and a side wall 912 is formed around the channel 911. The side wall 912 is provided with an air inlet for gas to enter the channel and an air outlet for gas to exit the channel. The auxiliary adsorption mechanism 920 has a porous structure and is arranged on one side of at least a portion of the side wall 912 of the electric field unit 910, and the at least a portion is provided with an air inlet and / or an air outlet. The same parts of the electric field unit as above will not be repeated, and this embodiment only describes the differences.

[0178] Reference Figure 6 , the side wall 912 of the electric field unit 910 includes an inner surface 9121 of the side wall and an outer surface 9122 of the side wall. In this embodiment, the auxiliary adsorption mechanism 920 is preferably arranged on one side of the entire outer surface 9122 of the side wall 912 of the electric field unit 910 provided with an air inlet and / or an air outlet, and the gas passes in a manner not parallel to the side wall 912 of the electric field unit 910. The auxiliary adsorption mechanism 920 of the porous structure can filter out part of the particles in the gas at the air inlet and the air outlet by physical filtration. In other embodiments, the auxiliary adsorption mechanism can also be arranged on one side of a part of the inner surface and / or outer surface of the side wall of the electric field unit provided with the air inlet and / or the air outlet. In this embodiment, there is a gap between the auxiliary adsorption mechanism 920 and the electric field unit 910. Preferably, there is a distance of less than or equal to 50 mm between the auxiliary adsorption mechanism 920 and the electric field unit 910. The gas in this distance space will be mixed again, and the mixed gas will then pass through the electric field unit 910 or the auxiliary adsorption mechanism 920 for particle removal. Within a certain distance range between the auxiliary adsorption mechanism 920 and the electric field unit 910, as the distance between the auxiliary adsorption mechanism 920 and the electric field unit 910 increases, the charge amount of the auxiliary adsorption mechanism 910 increases accordingly. In other embodiments, the auxiliary adsorption mechanism 920 is adhered to the entire outer surface 9122 of the side wall 912 of the electric field unit 910 in an adhesive manner, and the adhesion can be understood as theoretically there is no gap between the auxiliary adsorption mechanism 920 and the electric field unit 910. In other embodiments, the adhesion method can also be selected from mortise and tenon fixing, rivet fixing or other mechanical fixing methods, wherein the mortise and tenon fixing can be that the auxiliary adsorption mechanism is first fixed on the frame, and then the frame and the electric field unit are fixed by mortise and tenon fixing. However, those skilled in the art can understand that due to the limitations of actual processing conditions, there may be a certain gap when the auxiliary adsorption mechanism 920 is adhered to the side wall 912 of the electric field unit 910, and the gap can be ignored.

[0179] Reference Figure 6In this embodiment, the auxiliary adsorption mechanism 920 is composed of a 60-mesh polytetrafluoroethylene film. Since polytetrafluoroethylene is an electret material, when the electric field electret charges the electret material, the electret electric field of the electret material itself can have an electrostatic adsorption effect on the charged particles, and when the electric field suddenly disappears, the electret electric field will not disappear, and dust removal can continue. In other embodiments, the aperture of the auxiliary adsorption mechanism can also be selected from one or more of 40 meshes to 100 meshes. The finer the aperture, the greater the wind resistance of the gas and the greater the energy consumption. Preferably, the aperture of the auxiliary adsorption mechanism can also be selected from one or more of 40 meshes to 80 meshes; it can also be composed of a combination of multiple layers of film, and the porous structure overlaps and penetrates each other. In other embodiments, the material of the auxiliary adsorption mechanism can be selected from one or more of conductive materials or electret materials, wherein the conductive material can be selected from one or more of metals or alloys, and the electret material can be selected from inorganic compounds with electret properties and / or organic compounds with electret properties, and the inorganic compound is selected from one or more combinations of silicon dioxide, barium titanate, lead zirconate titanate, zinc oxide, tantalum oxide, aluminum oxide, titanium oxide, and silicon nitride; the organic compound is selected from one or more combinations of fluorocarbon polymers, polycarbonate, polypropylene, polyethylene, polyvinyl chloride, natural wax, resin, and rosin; the fluorocarbon polymer is selected from one or more combinations of polytetrafluoroethylene, polyvinylidene fluoride, polyperfluoroethylene propylene, soluble polyperfluoroethylene propylene, and soluble polytetrafluoroethylene.

[0180] An embodiment of the present invention provides an electric field unit component. The similarities between the electric field adsorption component and the above are not repeated here. Only the differences are described in this embodiment.

[0181] The electric field adsorption assembly includes an electric field unit and an auxiliary adsorption mechanism. The electric field unit is provided with an air inlet for gas to enter and / or an air outlet for gas to discharge. The auxiliary adsorption mechanism has a porous structure and is arranged on one side of at least a portion of the side wall of the electric field unit, and the at least a portion is provided with the air inlet and / or the air outlet. Preferably, there is a gap between the auxiliary adsorption mechanism and at least a portion of the electric field unit. Preferably, there is a distance of less than or equal to 50 mm between the auxiliary adsorption mechanism and at least a portion of the electric field unit. The gas in this distance space will be mixed again, and the mixed gas will then be removed by the electric field unit or the auxiliary adsorption mechanism for particle removal. Within a certain distance range between the auxiliary adsorption mechanism and the electric field unit, as the distance between the auxiliary adsorption mechanism and the electric field unit increases, the charge amount of the auxiliary adsorption mechanism increases accordingly. In other embodiments, the auxiliary adsorption mechanism may also be attached to at least a portion of the surface of the side wall of the electric field unit.

[0182] The electric field unit can be in the form of a plate, and the plate-shaped electric field unit can be used as one pole to form an electric field, and has an inner surface facing the other pole of the electric field and an outer surface opposite to the inner surface, and the auxiliary adsorption mechanism is arranged on one side of the outer surface of the plate-shaped electric field unit. Preferably, the plate-shaped electric field unit serves as an anode to form an electric field. The gas passes through in a manner that is not parallel to the side wall of the electric field unit, and the auxiliary adsorption mechanism of the porous structure can filter out part of the particles in the gas at the air inlet and the air outlet by physical filtration. When the auxiliary adsorption mechanism is composed of an electret material, after the electric field performs electret charging on the electret material, the electret electric field of the electret material itself can have an electrostatic adsorption effect on the charged particulate matter, and when the electric field suddenly disappears, the electret electric field will not disappear, and dust removal can continue.

[0183] Figure 7 This is a three-dimensional exploded schematic diagram of an electric field adsorption device of an embodiment of the present invention. The electric field adsorption device 1000 includes 8 electric field units and an auxiliary adsorption mechanism 1020. The electric field unit has a channel extending in the axial direction, and a side wall 1010 is formed around the channel. The side wall is provided with an air inlet for gas to enter the channel and an air outlet for gas to exit the channel. The auxiliary adsorption mechanism 1020 has a porous structure and is arranged on one side of at least a portion of at least one side wall 1010 of at least one electric field unit, and the at least one portion is provided with the air inlet and / or the air outlet. The auxiliary adsorption mechanism 1020 is composed of a 60-mesh polytetrafluoroethylene film. The electric field unit, the auxiliary adsorption mechanism, and the electric field adsorption device are the same as those described above and will not be repeated. This embodiment only describes the differences.

[0184] The side wall 1010 of the electric field adsorption device 1000 includes a first-type side wall 1011 and a second-type side wall 1012. A channel is arranged on one side of the first-type side wall 1011, and a channel is arranged on both sides of the second-type side wall 1012. The first-type side wall 1011 has an inner surface facing the channel and an outer surface opposite to the inner surface. The auxiliary adsorption mechanism 1020 is arranged on one side of at least a portion of the outer surface of the first-type side wall 1011. In this embodiment, the auxiliary adsorption mechanism 1020 is arranged on one side of at least a portion of the outer surface of the first-type side wall 1011 and there is a gap between the auxiliary adsorption mechanism 1020 and the outer surface of the first-type side wall 1011. Preferably, the distance between the auxiliary adsorption mechanism 1020 and the outer surface of the first-type side wall 1011 is less than or equal to 50 mm. The gas in this distance space will be mixed again, and the mixed gas will then be removed by the electric field unit or the auxiliary adsorption mechanism for particle removal. Within a certain distance range between the auxiliary adsorption mechanism and the electric field unit, as the distance between the auxiliary adsorption mechanism and the electric field unit increases, the charge amount of the auxiliary adsorption mechanism increases accordingly. In other embodiments, the auxiliary adsorption mechanism 1020 is arranged in contact with at least a portion of the outer surface of the first type side wall 1011. In this embodiment, the electric field adsorption device has 10 first type side walls 1011, of which there are 8 first type side walls 1011 with air inlets and / or air outlets, and 8 auxiliary adsorption mechanisms 1020 are respectively arranged on one side of the outer surface of the 8 first type side walls 1011 with air inlets and / or air outlets. In other embodiments, the auxiliary adsorption mechanism can also be arranged on one side of at least a portion of the surface of the second type side wall, preferably, there is a certain distance between the auxiliary adsorption mechanism and at least a portion of the surface of the second type side wall; preferably, there is a distance of less than or equal to 50 mm between the auxiliary adsorption mechanism and at least a portion of the surface of the second type side wall. In other embodiments, the auxiliary adsorption mechanism is arranged in contact with at least a portion of the surface of the second type side wall.

[0185] Figure 8 It is a three-dimensional exploded schematic diagram of an electric field adsorption device of an embodiment of the present invention. The electric field adsorption device 1100 includes 12 electric field units and an auxiliary adsorption mechanism 1120. In other embodiments, the electric field adsorption device 1100 may also include only 12 electric field units. The electric field unit has a channel extending in the axial direction, and a side wall 1110 is formed around the channel. The side wall 1110 is provided with an air inlet for gas to enter the channel and an air outlet for gas to exit the channel. The auxiliary adsorption mechanism 1120 has a porous structure and is arranged on one side of at least a portion of at least one side wall 1110 of at least one electric field unit, and the at least one portion is provided with the air inlet or the air outlet. The auxiliary adsorption mechanism 1020 is composed of a 60-mesh polytetrafluoroethylene film. The electric field unit, the auxiliary adsorption mechanism, and the electric field adsorption device are the same as above and will not be repeated. This embodiment only describes the differences.

[0186] The side wall 1110 of the electric field adsorption device 1100 includes a first type side wall 1111 and a second type side wall 1112. A channel is arranged on one side of the first type side wall 1111, and a channel is arranged on both sides of the second type side wall 1112. The first type side wall 1111 has an inner surface facing the channel and an outer surface opposite to the inner surface. The auxiliary adsorption mechanism 1120 is arranged on one side of the outer surface of the first type side wall 1111. In this embodiment, the auxiliary adsorption mechanism 1120 is arranged on one side of at least a portion of the outer surface of the first type side wall 1111 and there is a gap between the auxiliary adsorption mechanism 1120 and the outer surface of the first type side wall 1111. Preferably, the auxiliary adsorption mechanism 1120 is arranged on one side of at least a portion of the outer surface of the first type side wall 1111 and there is a distance of less than or equal to 50 mm between the auxiliary adsorption mechanism 1120 and the outer surface of the first type side wall 1111. The gas in the distance space will be mixed again, and the mixed gas will then be removed by the electric field unit or the auxiliary adsorption mechanism for particle removal. Within a certain distance range between the auxiliary adsorption mechanism and the electric field unit, as the distance between the auxiliary adsorption mechanism and the electric field unit increases, the charge amount of the auxiliary adsorption mechanism increases accordingly. In other embodiments, the auxiliary adsorption mechanism 1120 is arranged in contact with at least a portion of the outer surface of the first type of side wall 1111. In this embodiment, two auxiliary adsorption mechanisms 1120 are respectively arranged in an integral form on one side of the outer surface of the first type of side wall 1111 provided with an air inlet or an air outlet. In other embodiments, the auxiliary adsorption mechanism can also be provided on one side of at least a portion of the surface of the second type of side wall, preferably, there is a gap between the auxiliary adsorption mechanism and the surface of the second type of side wall; preferably, the auxiliary adsorption mechanism and the surface of the second type of side wall have a distance less than or equal to 50 mm. In other embodiments, the auxiliary adsorption mechanism is arranged in contact with at least a portion of the surface of the second type of side wall.

[0187] One embodiment of the present invention provides an electric field device, including a discharge electrode and an adsorption electrode, wherein the adsorption electrode is composed of the electric field adsorption assembly described in the above embodiment, and the same parts of the electric field adsorption assembly as above are not repeated, and only the differences are described in this embodiment. The discharge electrode can be composed of a slender or flat conductor and arranged on one side of the flat adsorption electrode. When the discharge electrode is a flat conductor, the side wall of the discharge electrode can be provided with a plurality of air holes for gas circulation. In other embodiments, the adsorption electrode can also be composed of an electric field unit component in the above-mentioned embodiment, in which the channel of the electric field unit is surrounded by side walls and the cross-section is a polygonal section perpendicular to the axial direction. The discharge electrode is arranged parallel to the side walls of the channel and passes through the center line of the channel, and the center line is a line extending along the axial direction of the channel and passing through the midpoint of the polygonal cross-section. For example, when the cross-section perpendicular to the axial direction formed by the channel surrounded by side walls is a rectangle, the center line is a line extending along the axial direction of the channel and passing through the intersection of the long side symmetry axis and the short side symmetry axis of the rectangular cross-section; when the cross-section perpendicular to the axial direction formed by the channel surrounded by side walls is a triangle, the center line is a line extending along the axial direction of the channel and passing through the intersection of the angular bisector of the triangular cross-section; preferably, when the cross-section perpendicular to the axial direction formed by the channel surrounded by side walls is a regular polygon, the discharge electrode is arranged parallel to the side walls of the channel and passes through the center of the inscribed circle of the cross-section, and the discharge efficiency here is the highest.

[0188] The adsorption electrode is electrically connected to one pole of the power supply, and the discharge electrode is electrically connected to the other pole of the power supply. Preferably, the adsorption electrode is electrically connected to the anode of the power supply, and the discharge electrode is electrically connected to the cathode of the power supply. The adsorption electrode and the discharge electrode form an electric field, and the gas is inhaled in a direction that is not parallel to the side wall of the adsorption electrode. Before entering the electric field, a part of the particulate matter in the gas is filtered by an auxiliary adsorption mechanism arranged on the side of the side wall with the air inlet. The particulate matter entering the electric field obtains a negative charge due to ionization discharge, and the negatively charged particulate matter moves toward the adsorption electrode and is deposited on the adsorption electrode. The particulate matter that is not adsorbed by the electric field can also be filtered by the auxiliary adsorption mechanism arranged on the side of the side wall with the air outlet after leaving the electric field, thereby improving the dust removal efficiency. When the auxiliary adsorption mechanism is composed of an electret material, after the electric field electret charges the electret material, the electret electric field of the electret material itself can have an electrostatic adsorption effect on the charged particulate matter, and when the electric field suddenly disappears, the electret electric field will not disappear, and dust removal can continue.

[0189] One embodiment of the present invention provides an electric field device, including a discharge electrode and an adsorption electrode, wherein the adsorption electrode is composed of the electric field adsorption device described in the above embodiment, and the similarities between the electric field adsorption device and the electric field device are not repeated, and only the differences are described in this embodiment. The discharge electrode is arranged in the channel of each electric field unit in the electric field adsorption device. Preferably, when the cross section of the channel surrounded by the side wall and perpendicular to the axial direction is a regular polygon, the discharge electrode is arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross section, and the discharge efficiency here is the highest. When the material of the auxiliary adsorption mechanism is 60 mesh polytetrafluoroethylene, the auxiliary adsorption mechanism of the porous material can filter out part of the particles in the gas at the air inlet and outlet by physical filtration, and after the electric field performs electret charging on the electret material, the electret electric field of the electret material itself can have an electrostatic adsorption effect on the charged particles, and the dust removal efficiency is increased by 10-20% compared with the case without the auxiliary adsorption mechanism. Since polytetrafluoroethylene is an electret material, when the active electric field suddenly disappears, the electret electric field of the auxiliary adsorption mechanism can also remove dust. Experiments show that when the active electric field of the electric field adsorption device suddenly disappears, the dust removal efficiency can reach 30% only through the auxiliary adsorption mechanism.

[0190] In one embodiment, referring to Figure 4B The electric field adsorption device 800 is formed by connecting a plurality of electric field units through a connector. In this embodiment, the electric field adsorption device 800 is formed by connecting eight electric field units. Specifically, the electric field adsorption device 800 is composed of two rows of electric field units as a whole. Figure 4BThe direction shown is for reference, and the row with the side wall facing downward is called the first row, and the row with the side wall facing upward is called the second row. Among them, the first row is formed by the first electric field unit 810, the third electric field unit 830, the fifth electric field unit 850 and the seventh electric field unit 870, which are all of the same size and structure, connected in sequence through their respective side walls at the bottom, and the axes of their channels are parallel to each other and on the same plane. The second row is formed by the second electric field unit 820, the fourth electric field unit 840, the sixth electric field unit 860 and the eighth electric field unit 880, which are of the same size and structure, connected in sequence through their respective side walls at the top. Specifically, in the present embodiment, the side walls of the first electric field unit 810, the third electric field unit 830, the fifth electric field unit 850 and the seventh electric field unit 870, which are located at the bottom, are provided with a folded edge portion, and the folded edges on the side walls of each two adjacent electric field units are aligned with each other, and the two adjacent electric field units are fixedly connected by connecting a connector to the folded edge portion, for example, by riveting the folded edges of the two adjacent electric field units with rivets, so as to fix the two adjacent electric field units. Riveting with rivets is not only convenient for processing. It also has good sealing performance. Riveting not only makes the sealing between the interconnected side walls good, but also the rivet will expand in the rivet hole during riveting, so that the rivet and the hole also have high sealing performance. Similarly, the side walls of the second electric field unit 820, the fourth electric field unit 840, the sixth electric field unit 860 and the eighth electric field unit 880 at the top are also provided with folded edges, and the folded edges at the top of two adjacent electric field units are aligned with each other, and the two adjacent electric field units are fixedly connected by connecting the connecting piece to the folded edges. Specifically, the connection method of the first electric field unit 810, the third electric field unit 830 and the fifth electric field unit 850 in the first row is taken as an example to illustrate the connection method of adjacent electric field units. The bottom side wall of the third electric field unit 830 is provided with a first folded edge portion 891 bent downward, the bottom side wall of the first electric field unit 810 is provided with a second folded edge portion 892 bent downward, the first folded edge portion 891 and the second folded edge portion 892 are aligned with each other, and the first electric field unit 810 and the third electric field unit 830 are fixedly connected by inserting a connecting piece through the first folded edge portion 891 and the second folded edge portion 892, the bottom side wall of the third electric field unit 830 is provided with a second folded edge portion 893 bent downward, and the bottom side wall of the fifth electric field unit 850 is provided with a first folded edge portion 894 bent downward, and the third electric field unit and the fifth electric field unit are fixedly connected by inserting a connecting piece through the first folded edge portion 894 and the second folded edge portion 893. In this embodiment, the first folded edge portions of the plurality of electric field units and the second folded edge portions of the adjacent units are preferably riveted by rivets. The connection method of the fifth electric field unit 850 and the seventh electric field unit 870 is similar to this, and will not be described in detail.

[0191] Continue to refer to Figure 4BIn this embodiment, the first electric field unit 810 and the second electric field unit 820 share the second side wall 8122, that is, the two sides of the second side wall 8122 face the channel of the first electric field unit 810 and the channel of the second electric field unit 820 respectively. The upper end and the lower end of the second side wall 8122 are respectively provided with an upper folding portion 895 and a lower folding portion 896, and the upper folding portion 895 and the lower folding portion 896 are bent in different directions respectively. The two sides of the upper folding portion 895 are respectively aligned with the folding portion of the third side wall 8123 of the first electric field unit 810 and the fourth side wall 8222 of the second electric field unit 820, and are fixedly connected by a connecting member such as a rivet. The fourth side wall 8222 of the second electric field unit 820 is respectively connected to the first electric field unit 810 and the third electric field unit 830, and the fourth side wall 8222, the second side wall 8122 and the fifth side wall 8223 constitute the second electric field unit 820.

[0192] Similarly, multiple electric field units are connected in the above manner to form an electric field adsorption device 800. Figure 4B In the illustrated embodiment, each side wall of each electric field unit is provided with folded portions at both ends perpendicular to the axial direction. The same electric field unit is matched with the folded portions of adjacent side walls and then fixedly connected by means such as riveting. Different electric field units are connected by sharing a side wall and fixing their other side walls to the shared side wall. For example, the second side wall 8122 shared by the first electric field unit 810 and the second electric field unit 820 is fixedly connected to the third side wall 8123 of the first electric field unit 810 and the fourth side wall 8222 of the second electric field unit 820 at the same time.

[0193] It should be noted that in Figure 4B In the illustrated embodiment, the folded edge portions of the side wall at the top (e.g., the fourth side wall 8222) and the side wall at the bottom (e.g., the first side wall 8121) are bent substantially in a direction perpendicular to the main portion of the side wall where they are located, and the folded edge portion of the middle side wall (e.g., the second side wall 8122) connecting the side wall at the top and the side wall at the bottom is bent substantially in a direction of 120 degrees to the main portion of the side wall where they are located. Such an arrangement can facilitate the stable placement of the electric field adsorption device and facilitate the placement of multiple layers.

[0194] Fig. 9A FIG. 1 shows an electric field adsorption device 1100 according to an embodiment of the present invention. Fig. 9AThe electric field adsorption device 1100 includes 12 identical electric field units, which are, from left to right, a second electric field unit 620, a first electric field unit 610, a third electric field unit 630, a fourth electric field unit 640, a fifth electric field unit 650, a sixth electric field unit 660, a seventh electric field unit 670, an eighth electric field unit 680, a ninth electric field unit 690, a tenth electric field unit 691, an eleventh electric field unit 692, and a twelfth electric field unit 693. The 12 identical electric field units are arranged adjacent to each other on the left and right, and the adjacent electric field units share a side wall. The channel of each electric field unit is surrounded by the side wall to form a regular hexagon in a cross section perpendicular to the axial direction. In other embodiments, the number of electric field units in the electric field adsorption device is not limited thereto, and the number of electric field units can be adjusted according to the actual amount of gas to be purified. Moreover, the arrangement of the multiple electric field units can be adjacently arranged and / or non-adjacently arranged in any direction of up, down, left, right, front, and back. In this embodiment, in order to facilitate production and processing, the structures and shapes of the twelve electric field units are the same. However, in other embodiments, depending on the storage conditions of the device space or other factors, the structures, shapes, and sizes of multiple electric field units may be different or partially the same.

[0195] Fig. 9B yes Fig. 9A Top view of Fig. 9B In this embodiment, the first electric field unit 610 is adjacent to the second electric field unit 620 and the third electric field unit 630. The first electric field unit 610 is surrounded by a first side wall 611, a second side wall 612, a third side wall 613, a fourth side wall 614, a fifth side wall 615, and a sixth side wall 616, and its cross section is a regular hexagon. Each side wall is provided with a plurality of air inlets and / or air outlets. The first electric field unit 610 and the second electric field unit 620 share the first side wall 613 of the first electric field unit 610, and the first electric field unit 610 and the third electric field unit 630 share the fifth side wall 615 of the first electric field unit 610.

[0196] exist Fig. 9A and 9B In the illustrated embodiment, no air inlet or air outlet is provided on the center line of each side wall of each electric field unit extending in the channel direction. Specifically, taking the first electric field unit 610 as an example, no air inlet or air outlet is provided on the center line 617 of each side wall of the first electric field unit 610, so that the position of the center line of the side wall forms a dust accumulation part. When the discharge electrode is provided at the center line of the channel of the electric field unit, the distance between the discharge electrode and the center line of the side wall is the shortest distance between the discharge electrode and the side wall, so that the dust collection efficiency of this part is the highest, and the best dust collection effect can be achieved.

[0197] It should be noted that although Fig. 9AIn the embodiment shown, the midline of each side wall of each electric field unit is not provided with an air inlet or an air outlet. However, it is also possible that only the midline portion of one or more side walls of one or more electric field units is not provided with an air inlet or an air outlet. Although the effect of these cases is not Fig. 9A The embodiment shown is excellent, but also has certain technical effects. Compared with the solution of setting air inlet or air outlet at the center line, no air inlet or air outlet is set at the center line, which can achieve more efficient dust accumulation.

[0198] In addition, it should be noted that the center line in the present invention refers to the center line extending along the channel direction on the side wall, and the distance between the center line and the two ends of the channel perpendicular to the side wall where the center line is located is equal.

[0199] Fig.10 It is a three-dimensional schematic diagram of an electric field device according to an embodiment of the present invention, wherein the electric field device comprises a discharge electrode and an adsorption electrode.

[0200] In this embodiment, the electric field device includes a plurality of discharge electrodes and adsorption electrodes. The discharge electrodes include a first discharge electrode 619, a second discharge electrode 629, a third discharge electrode 639, a fourth discharge electrode 649 and the remaining eight discharge electrodes. The adsorption electrodes are Fig. 9A and Fig. 9B The electric field adsorption device 1100 shown in the figure has multiple electric field units in the same structure. Fig. 9A and Fig. 9B The relevant description of the electric field adsorption device shown in FIG. will not be described in detail here. Fig.10 As shown, no air inlet or air outlet is provided on the portion of each side wall of each electric field unit at the shortest distance 617 from the discharge electrode. For example, when the cross section of the channel of the electric field unit perpendicular to the axis is a regular polygon, no air inlet or air outlet is provided on the midline of each side wall (e.g. Fig. 9A and 9B For example, the portion of each side wall of the first electric field unit 610 that is closest to the discharge electrode 619 is not provided with an air inlet or an air outlet, so that the portion forms a dust accumulation portion.

[0201] Reference Fig.10 The first discharge electrode 619 is arranged in the channel of the first electric field unit 610, and a first electric field is formed between the first discharge electrode 619 and the first electric field unit 610. The second electric field unit 620, the third electric field unit 630, and the fourth electric field unit 640 respectively form a second electric field, a third electric field, and a fourth electric field with the second discharge electrode 629, the third discharge electrode 639, and the fourth discharge electrode 649, and so on. The remaining electric field units respectively form an electric field with one discharge electrode.

[0202] Since the channel of each electric field unit is surrounded by the side wall to form a regular hexagon in cross section perpendicular to the axial direction, the discharge electrode is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the corresponding electric field unit cross section, where the discharge efficiency is the highest. For example, the first discharge electrode 619 is arranged in the channel of the first electric field unit 610, and is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross section of the first electric field unit 610, and the relationship between other discharge electrodes and electric field units can be deduced by analogy.

[0203] Reference Fig. 9B , Fig.10 In this embodiment, A is the air inlet direction, and B is the air outlet direction. The flow of gas in the first electric field, the second electric field, and the third electric field is taken as an example for explanation, and the flow of other electric fields is similar.

[0204] For the first electric field, the gas enters the first electric field through the air inlet holes on the first side wall 611, the second side wall 612, and the sixth side wall 616 in the first electric field unit 610, and the gas entry direction is not perpendicular to the ion flow direction in the first electric field; because the air inlet holes on the first side wall 611, the second side wall 612, and the sixth side wall 616 are arranged in a staggered manner with the air outlet holes on the third side wall 613, the fourth side wall 614, and the fifth side wall 615, the air flow can flow to multiple adjacent electric field units, and the air flow in the hollow electric field unit 610 is disordered. The more particles passing near the first discharge electrode 619, the more collisions with the discharge electrode 619, and the more charged particles, which improves the adsorption efficiency. In addition, because the first electric field has two inclined surfaces, the inclined air inlet makes the air flow in the hollow first electric field unit 610 more disordered. After the collision with the side wall increases, the frequency of passing near the first discharge electrode 619 is increased, so that the adsorption efficiency is higher. After being processed by the first electric field, the air is discharged from the air outlet holes on the third side wall 613 , the fourth side wall 614 , and the fifth side wall 615 , and enters the second electric field and the third electric field through the air outlet holes on the third side wall 613 and the fifth side wall 615 .

[0205] For the second electric field, a part of the gas enters the second electric field through the air inlet holes on the fourth side wall 624 and the fifth side wall 625 in the adsorption unit 620 of the second electric field, and another part of the gas from the first electric field enters the second electric field through the holes on the third side wall 613 in the first electric field unit 610. The entry direction of these gases is not perpendicular to the direction of the ion flow in the second electric field. Due to the staggered arrangement of the air inlet holes and the air outlet holes, the airflow in the hollow electric field unit 620 is disordered. The more airflow passes near the discharge electrode 629, the more particles collide with the second discharge electrode 629, and the more charged particles there are, which improves the adsorption efficiency. In addition, since the second electric field also has an inclined surface, similarly, the inclined air inlet makes the airflow in the hollow second electric field unit 620 more disordered, and the adsorption efficiency is higher. After being processed by the second electric field, they are discharged from the air outlet holes on the first side wall 621, the second side wall 622, and the third side wall 623 in the second electric field unit 620 respectively.

[0206] For the third electric field, part of the gas enters the third electric field through the air inlet on the fifth side wall 635 in the third electric field unit 630, and the other part of the gas from the first electric field through the hole on the fifth side wall 615 in the first electric field unit 610 and the gas from the fourth electric field through the hole on the fourth side wall 634 in the third electric field unit 630. The entry direction of these gases is not perpendicular to the direction of the ion flow in the third electric field. Due to the staggered arrangement of the air inlet and the air outlet, the airflow in the hollow third electric field unit 630 is turbulent. The more airflow passes near the discharge electrode 639, the more particles collide with the third discharge electrode 639, and the more charged particles there are, which improves the adsorption efficiency. After being processed by the third electric field, they are discharged from the air outlets on the first side wall 631, the second side wall 632, and the third side wall 633 in the third electric field unit 630.

[0207] Similarly, the process of pushing gas into other electric field generating units is carried out in the same way.

[0208] The electric field unit of the electric field device of this embodiment has a structure with holes opened on the side wall. The air intake from the side makes the gas flow disordered in the electric field, increasing the collision with the third discharge electrode 639, increasing the number of charged particles, and improving the overall adsorption efficiency.

[0209] Fig.11 It is a three-dimensional schematic diagram of an electric field adsorption device according to an embodiment of the present invention.

[0210] Fig.12 yes Fig.11 Schematic diagram of the three-dimensional decomposition.

[0211] The electric field adsorption device includes a plurality of electric field units, a plurality of connecting members and at least one auxiliary adsorption member. The electric field unit has a channel extending in the axial direction, and a plurality of side walls are formed around the channel. The plurality of side walls are sequentially connected by the connecting members and at least one side wall is provided with an air inlet for gas to enter the channel and at least one side wall is provided with an air outlet for gas to flow out of the channel. The auxiliary adsorption mechanism has a porous structure and is arranged on at least a portion of the surface of at least one side wall of at least one electric field unit through the connecting members, and the at least one portion is provided with the air inlet and / or the air outlet. The auxiliary adsorption member is composed of a 60-mesh polytetrafluoroethylene film. The electric field unit, the auxiliary adsorption member and the electric field adsorption device are the same as above and will not be repeated. This embodiment only describes the differences.

[0212] In one embodiment, the electric field adsorption device includes a plurality of electric field units, a plurality of connecting members and at least one auxiliary adsorption member, and the auxiliary adsorption member is arranged on at least a portion of the outer surface of the side wall.

[0213] In one embodiment, the electric field adsorption device includes multiple electric field units, multiple connecting components and at least one auxiliary adsorption member, which is arranged on at least a portion of the outer surface of the side wall, and there is a gap between the auxiliary adsorption member and the surface of the electric field unit.

[0214] In one embodiment, the auxiliary adsorbent is made of a 60-mesh polytetrafluoroethylene film.

[0215] In one embodiment, the connecting member is any one or a combination of an elastic member, a connecting assembly and a clamp.

[0216] In one embodiment, the connecting assembly comprises a rivet or a bolt.

[0217] In one embodiment, the electric field unit has multiple side walls, and both ends of the side walls have bent folded portions. The folded portions of two adjacent side walls in the electric field unit are connected to form a connecting end, and the folded portions in the connecting ends of two adjacent electric field units are aligned in sequence to form a unit connecting end. Two adjacent electric field units are connected at the unit connecting end, and the auxiliary adsorption component is arranged on the outside of the unit connecting end. The multiple folded portions in the unit connecting end and the auxiliary adsorption component are connected and fixed by rivets.

[0218] In one embodiment, the electric field adsorption device further includes a gasket, which is arranged between the rivet and the auxiliary adsorption member.

[0219] Preferably, the gasket has an L-shaped cross section.

[0220] In one embodiment, Fig.11 , 12As shown, the electric field adsorption device 1200 includes 6 electric field units, 12 gaskets 500 , a plurality of rivets 99 and two auxiliary adsorption members 1220 .

[0221] In one embodiment, referring to Figure 4B , Fig.11 The six electric field units include a first electric field unit 810 , a second electric field unit 820 , a third electric field unit 830 , a fourth electric field unit 840 , a fifth electric field unit 850 , and a sixth electric field unit 860 .

[0222] For the convenience of description, Fig.11 The direction shown is for reference, and a row with the side wall facing the bottom is called the first row, and a row with the side wall facing the top is called the second row. Among them, the first row is formed by the first electric field unit 810, the third electric field unit 830, and the fifth electric field unit 850, which are all of the same size and structure, being connected in sequence through their respective side walls at the bottom, and the axes of their channels are parallel to each other and on the same plane. The second row is formed by the second electric field unit 820, the fourth electric field unit 840, and the sixth electric field unit 860, which are of the same size and structure, being connected in sequence through their respective side walls at the top. Specifically, in this embodiment, the side walls at the bottom of the first electric field unit 810, the third electric field unit 830, and the fifth electric field unit 850 are all provided with a folded edge portion, and the folded edge portions on the side walls at the bottom of each adjacent two electric field units are aligned with each other. The side walls at the top of the second electric field unit 820, the fourth electric field unit 840, and the sixth electric field unit 860 are also provided with a folded edge portion.

[0223] Specifically, the connection between the first electric field unit 810 and the third electric field unit 830 in the first row is taken as an example to illustrate the connection between the electric field unit and the auxiliary adsorption mechanism 1020 through the gasket 500.

[0224] The bottom side wall of the third electric field unit 830 is provided with a first folded edge portion 891 bent downward, the bottom side wall of the first electric field unit 810 is provided with a second folded edge portion 892 bent downward, the upper end and the lower end of the second side wall 8122 are respectively provided with an upper folded edge portion 895 and a lower folded edge portion 896, and the upper folded edge portion 895 and the lower folded edge portion 896 are bent in different directions respectively, and the upper end and the lower end of the fifth side wall 8223 are respectively provided with an upper folded edge portion 897 and a lower folded edge portion 898, and the upper folded edge portion 895 and the lower folded edge portion 896 are bent in different directions respectively.

[0225] Reference Fig.12, from left to right at the connection D, the second folding portion 892 of the bottom side wall of the first electric field unit 810, the lower folding portion 896 of the second side wall 8122, the lower folding portion 898 of the fifth side wall 8223, and the first folding portion 891 of the bottom side wall of the third electric field unit 830 are aligned with each other and connected by a connecting member such as a rivet. In this embodiment, the connecting member includes a rivet and a gasket. Among them, the auxiliary adsorption member 1220 is arranged between the first folding portion 891 or the second folding portion 892 and the gasket.

[0226] The folded edge parts of two adjacent electric field units and the auxiliary adsorption member are riveted together by rivets to fix the two adjacent electric field units and the auxiliary adsorption member. The rivet riveting is not only convenient for processing, but also has good sealing performance. The riveting not only makes the sealing between the interconnected side walls good, but also the rivet expands in the rivet hole during riveting, so that the rivet and the hole also have high sealing performance.

[0227] In the embodiment, the gasket 500 is in the shape of a straight bar with an "L"-shaped cross-section. At the connection D, the two gaskets 500 are respectively arranged on the first folded edge portion 891 and the second folded edge portion 892 along the axial direction of the channel, and the first right-angled side (the side parallel to the first folded edge portion 891) clamps the auxiliary adsorption component 1220 with the first folded edge portion 891 or the second folded edge portion 892, and the second right-angled side (the side perpendicular to the first folded edge portion 891) clamps the auxiliary adsorption component 1220 with the side wall of the bottom of the electric field unit.

[0228] Similarly, multiple electric field units, multiple gaskets, multiple rivets and two auxiliary adsorption members are connected in the above manner to form the electric field adsorption device 1200.

[0229] In one embodiment, during assembly, the right-angled first side of the gasket (which is parallel to the first folded edge portion 891) and the first folded edge portion 891 or the second folded edge portion 892 clamp the auxiliary adsorbent 1220, and the right-angled second side has a distance from the side wall of the bottom of the electric field unit. At both ends D and E, the auxiliary adsorbent 1220 is fixed to the right-angled first sides of the two gaskets through the first folded edge portion 899 and the second folded edge portion 892 of the bottom side wall of the first electric field unit 810, respectively. When the auxiliary adsorbent 1220 is tightened, the right-angled second side abuts against and clings to the auxiliary adsorbent 1220, so that there is a certain distance between the auxiliary adsorbent 1220 and the outer surface of the side wall 8121. Preferably, the auxiliary adsorbent 1220 is arranged on at least a portion of the outer surface of the side wall 8121 and the auxiliary adsorbent 1220 and the outer surface of the side wall 8121 have a distance less than or equal to 50 mm. The gas in this distance space will be mixed again, and the mixed gas will then be removed by the electric field unit or the auxiliary adsorption mechanism. Within a certain distance range between the auxiliary adsorption member and the electric field unit, as the distance between the auxiliary adsorption member and the electric field unit increases, the charge of the auxiliary adsorption member increases accordingly.

[0230] In one embodiment, the gasket is in sheet shape. During assembly, one side of the gasket and the first folded edge portion 891 or the second folded edge portion 892 clamp the auxiliary adsorption member 1220, and one long side of the gasket is in close contact with the side wall surface of the bottom of the electric field unit.

[0231] In one embodiment, the gasket is in sheet shape. During assembly, one side of the gasket and the first folded edge portion 891 or the second folded edge portion 892 clamp the auxiliary adsorption member 1220, and a long side of the gasket has a gap with the side wall surface of the bottom of the electric field unit.

[0232] In one embodiment, Fig.13 As shown, the inner section of the card 501 is groove-shaped, and the card 501 is mounted on the multiple folded edges of the connection end to fix the multiple folded edges of the connection end and the auxiliary adsorption component 1220. During assembly, the inner section of the card 501 matches and fits tightly with the thickness of the folded edges and the thickness of the auxiliary adsorption component 1220, and the open end 5011 of the card 501 is in close contact with the side wall surface of the bottom of the electric field unit.

[0233] In one embodiment, during assembly, there is a gap between the open end 5011 of the clamp 501 and the side wall surface of the bottom of the electric field unit.

[0234] In one embodiment, the clamping member 501 may be provided in multiple sections. Preferably, the clamping member 501 is an integral whole.

[0235] In one embodiment, the elastic member 502 has an opening, and the elastic member 502 is sleeved on the outer side of the folded edge portion of the connecting end to fix the multiple folded edge portions and the auxiliary adsorption member 1220 of the connecting end, and the multiple folded edge portions and the auxiliary adsorption member 1220 are clamped and fixed by elasticity.

[0236] Preferably, if Fig.14 As shown, a gasket 5021 is provided at the open end of the elastic member 502 .

[0237] Preferably, the gasket can be arranged in multiple sections.

[0238] Preferably, the gasket is integral.

[0239] In one embodiment, the gasket 5021 is in sheet shape. During assembly, one side of the gasket and the first folded edge portion 891 or the second folded edge portion 892 clamp the auxiliary adsorption member 1220, and one long side 5022 of the gasket is in close contact with the side wall surface of the bottom of the electric field unit.

[0240] In one embodiment, during assembly, a long side 5022 of the gasket has a gap with the side wall surface of the bottom of the electric field unit.

[0241] In one embodiment, Fig.15 As shown, the gasket 503 is L-shaped. During assembly, the first right-angled surface of the gasket and the first folded edge portion 891 or the second folded edge portion 892 clamp the auxiliary adsorption component 1220, and the second right-angled surface 5031 of the gasket is in close contact with the side wall surface of the bottom of the electric field unit.

[0242] In one embodiment, during assembly, a gap exists between the right-angled second surface 5031 of the gasket and the side wall surface of the bottom of the electric field unit.

[0243] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. An electric field unit, characterized in that: The electric field unit constitutes a cathode or an anode of the electric field and has a channel extending in an axial direction, the axial direction is the same as the direction of the central axis of the electric field unit extending in the direction of the channel, a side wall is formed around the channel, and the cross-section of the channel surrounded by the side wall and perpendicular to the axial direction is polygonal, circular or elliptical, the side wall is provided with an air inlet for gas to enter the channel and an air outlet for gas to discharge from the channel, the center of the air inlet of the side wall provided with the air inlet and the center of the air outlet of the side wall provided with the air outlet are arranged on different planes perpendicular to the axial direction, wherein If the two side walls are overlapped, the air inlet and the air outlet do not satisfy any of the following conditions: (1) Complete overlap, (2) one of the air inlet holes completely contains another of the air outlet holes, (3) One of the air outlet holes completely contains another of the air inlet holes.

2. The electric field unit according to claim 1, characterized in that: The electric field unit includes a plurality of air inlet holes and a plurality of air outlet holes, wherein the plurality of air inlet holes are arranged in at least one row along the axial direction, and the plurality of air outlet holes are arranged in at least one row along the axial direction, wherein the center of any one of the air inlet holes and the center of any one of the air outlet holes are arranged on different planes perpendicular to the axial direction.

3. The electric field unit according to claim 2, characterized in that: The plurality of air inlet holes are evenly distributed along the axial direction, and / or the plurality of air outlet holes are evenly distributed along the axial direction.

4. The electric field unit according to any one of claims 2 to 3, characterized in that: The plurality of air inlet holes and / or the plurality of air outlet holes are arranged axially from one end of the side wall to the other end of the side wall.

5. The electric field unit according to claim 1, characterized in that: The air inlet and / or the air outlet is a circular hole.

6. The electric field unit according to claim 5, characterized in that: The air inlet hole and the air outlet hole have the same diameter.

7. The electric field unit according to claim 1, characterized in that: The electric field unit includes a plurality of side walls, and the air inlet holes and the air outlet holes are respectively arranged on different side walls.

8. The electric field unit according to claim 1, characterized in that: The electric field unit includes a plurality of side walls, which are sequentially connected to make the channel have a regular polygonal cross section.

9. The electric field unit according to claim 8, characterized in that: The electric field unit includes at least three side walls.

10. The electric field unit according to claim 9, characterized in that: The electric field unit includes at least six side walls.

11. An electric field adsorption device, characterized in that: The electric field adsorption device comprises a plurality of electric field units as described in any one of claims 1 to 10, and the plurality of electric field units are connected into an integral structure.

12. The electric field adsorption device according to claim 11, characterized in that: Two adjacent electric field units share a side wall, and two surfaces of the side wall face the two channels respectively.

13. The electric field adsorption device according to any one of claims 11 or 12, characterized in that: The electric field adsorption device constitutes the cathode and / or anode of the electric field.

14. The electric field adsorption device according to claim 13, characterized in that: The plurality of electric field units include a first group of electric field units and a second group of electric field units, the first group of electric field units forming an anode of the electric field, and the second group of electric field units forming a cathode of the electric field.

15. An electric field device, comprising a discharge electrode and an adsorption electrode, characterized in that: The adsorption electrode is composed of the electric field unit according to any one of claims 1 to 10, and the discharge electrode is composed of a conductor arranged in the channel and extending along the channel.

16. The electric field device according to claim 15, characterized in that: The discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel.

17. The electric field device according to claim 16, characterized in that: The channel has a regular polygonal cross section, and the discharge electrode passes through the center of a circle inscribed in the cross section.

18. An electric field device, comprising a discharge electrode and an adsorption electrode, characterized in that: The adsorption electrode is composed of the electric field adsorption device according to any one of claims 11 to 14, and the discharge electrode is composed of a conductor arranged in each of the channels and extending along the channels.

19. The electric field device according to claim 18, characterized in that: The electric field device further comprises a top plate and a bottom plate, wherein the top plate and the bottom plate are respectively connected to two ends of the electric field device and seal the two ends of the channel.

20. The electric field device according to any one of claims 18 or 19, characterized in that: The discharge electrode is arranged parallel to the side wall of the channel and passes through the center line of the channel.

21. The electric field device according to claim 20, characterized in that: The channel has a regular polygonal cross section, and the discharge electrode passes through the center of a circle inscribed in the cross section.

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