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 axially, and a plurality of side walls are formed around the channel. The plurality of side walls are sequentially connected by a connecting member, and an air inlet for gas to enter the channel is provided on at least one side wall, and an air outlet for gas to flow out of the channel is provided on at least one side wall. The side walls connected by the connecting member can not only achieve standardized and batch production, are convenient to process and have high efficiency, but also have the advantages of simple assembly, detachable and convenient for packaging and transportation.

Description

Technical Field

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

[0002] Currently, electrostatic technology is widely used in the field of gas purification. When gas passes through an electrostatic field, it is ionized. After the particulate matter in the gas combines with the charged ions, it tends to move towards the electrode with the opposite polarity of the charged ions and deposit. It can be seen that the particulate matter removal rate is related to the charging efficiency of the particulate matter. In current electrostatic gas purification devices, the direction in which the gas enters the electric field is perpendicular to the direction of the ion flow in the electric field, resulting in defects such as short residence time of the gas in the electric field and low charging efficiency. Summary of the Invention

[0003] The object 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] To solve the above problems, according to one aspect of the present invention, there is provided an electric field unit having a channel extending axially, 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 exit the channel, and the center of the air inlet hole and the center of the air outlet hole are arranged in 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 air inlet holes are arranged axially in at least one column, and the plurality of air outlet holes are arranged axially in at least one column, wherein the center of any one of the air inlet holes and the center of any one of the air outlet holes are arranged in different planes perpendicular to the axial direction.

[0006] In one embodiment, the plurality of air inlet holes are uniformly distributed axially, and / or the plurality of air outlet holes are uniformly distributed axially.

[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 the side walls, the plurality of the side walls are connected in sequence and the channel has a regular polygon cross-section; preferably, the electric field unit includes at least three of the side walls; preferably, the electric field unit includes at least six of the side walls.

[0011] In one embodiment, the electric field unit forms 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, the electric field adsorption device includes a plurality of the electric field units according to any one of the embodiments, and the plurality of the 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 of the channels respectively.

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

[0015] In one embodiment, preferably, the plurality of the 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 form the anode of the electric field, and the second group of electric field units form the cathode of the electric field.

[0016] According to another aspect of the present invention, there is provided an electric field device, including 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 the embodiments, and the discharge electrode is composed of a conductor disposed in the channel and extending along the channel.

[0017] In one embodiment, the discharge electrode is disposed parallel to the side wall of the channel and passes through the center line of the channel, preferably, the channel has a regular polygon 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, including 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 the embodiments, and the discharge electrode is composed of a conductor disposed in each of the channels and extending along the channel.

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

[0020] In one embodiment, the discharge electrode is disposed parallel to the side wall of the channel and passes through the center line of the channel, preferably, the channel has a regular polygon 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, including a discharge electrode and an adsorption electrode. The adsorption electrode is composed of a hollow tube, and the discharge electrode is disposed inside the hollow tube of the adsorption electrode. An electric field is formed between the discharge electrode and the adsorption electrode. It is characterized in that an air inlet for gas to enter is provided on the hollow side wall of the adsorption electrode, and the gas inlet direction is not perpendicular to the ion flow direction in the electric field.

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

[0023] In one embodiment, the cross-section of the hollow of the adsorption 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 provided with the air inlet or the air outlet is composed of a Venturi plate.

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

[0028] In one embodiment, the two series-connected electric field generating units include a first electric field generating unit and a second electric field generating unit. The side wall of the adsorption electrode of the first electric field generating unit provided with the air outlet is used as one side wall of the adsorption electrode of the second electric field generating unit, and air outlets for gas discharge are provided on other side walls of the second electric field generating unit.

[0029] In one embodiment, there is further included at least one power supply. 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 the other electrode of the power supply.

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

[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 includes an electric field unit and an auxiliary adsorption mechanism. The electric field unit is provided with an air inlet hole for gas to enter and / or an air outlet hole for gas to discharge. The auxiliary adsorption mechanism has a porous structure and is arranged on one side of at least a part of the electric field unit, and the at least a part is provided with the air inlet hole and / or the air outlet hole.

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

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

[0034] In one embodiment, the auxiliary adsorption mechanism fits on at least a part of the surface of the electric field unit.

[0035] In one embodiment, the auxiliary adsorption mechanism has a porous structure with overlapping and communicating pores.

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

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

[0038] In one embodiment, the electric field unit forms 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 includes an electric field unit and an auxiliary adsorption mechanism. The electric field unit has a channel extending axially, and a side wall is formed around the channel. 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 from the channel. The auxiliary adsorption mechanism has a porous structure and is arranged on one side of at least a part of the side wall of the electric field unit, and the at least a part is provided with the air inlet hole and / or the air outlet hole.

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

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

[0042] In one embodiment, the auxiliary adsorption mechanism is attached to at least a part 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 hole and the air outlet hole 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 part of the outer surface and / or the inner surface of the side wall provided with the air inlet hole and / or the air outlet hole.

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

[0045] In one embodiment, the auxiliary adsorption mechanism has a porous structure with overlapping and penetrating pores.

[0046] In one embodiment, the electric field unit includes a plurality of side walls, and the plurality of side walls are sequentially connected so that the channel has a regular polygon 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 forms 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 includes a plurality of electric field units and an auxiliary adsorption mechanism, the electric field unit has a channel extending along the axial direction, side walls are formed around the channel, the 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, the auxiliary adsorption mechanism has a porous structure and is arranged on one side of at least a part of at least one side wall of at least one of the electric field units, and at least a part of the side wall is provided with the air inlet hole and / or the air outlet hole.

[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 part of the outer surface of the first type of side wall.

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

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

[0052] In one embodiment, the auxiliary adsorption mechanism fits onto at least a portion of the outer surface of the first type of sidewall.

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

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

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

[0056] In one embodiment, the auxiliary adsorption mechanism is arranged to fit onto at least a portion of the second type of sidewall.

[0057] In one embodiment, each of the channels is surrounded by a plurality of the sidewalls; 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 with overlapping and communicating pores.

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

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

[0061] According to another aspect of the present invention, there is provided an electric field device, including a discharge electrode and an adsorption electrode, characterized in that the adsorption electrode is composed of the electric field unit assembly according to 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, including a discharge electrode and an adsorption electrode, characterized in that the adsorption electrode is composed of the electric field unit assembly according to any one of the embodiments, and the discharge electrode is composed of a conductor disposed in the channel and extending along the channel.

[0063] In one embodiment, the discharge electrode is arranged parallel to the sidewall 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, including a discharge electrode and an adsorption electrode, characterized in that the adsorption electrode is constituted by the electric field adsorption device described in any one of the embodiments, and the discharge electrode is constituted by a conductor disposed in each of the channels and extending along the channels.

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

[0066] In one embodiment, the gas treatment electric field device further includes a top plate and a bottom plate, and the top plate and the bottom plate are respectively connected to two ends of the electric field adsorption device and seal 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 along the axial direction, and a plurality of side walls are formed around the channel, and the plurality of side walls are sequentially connected by a 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.

[0068] In one embodiment, each of the side walls has a side wall main body and a folded edge portion respectively bent from the side wall main body along both ends perpendicular to the channel, and the connecting member is disposed at the folded edge portions of adjacent two side walls to fixedly connect the adjacent two side walls.

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

[0070] In one embodiment, the electric field unit includes 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 includes six side walls, and the six side walls are sequentially connected 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 triangular cross-section.

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

[0074] In one embodiment, a plurality of through holes are respectively provided in the folded edge portions along the extending direction of the channel, and the connecting member passes through the through holes.

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

[0076] In one embodiment, the shape of the air inlet hole and / or the air outlet hole is circular, oval, and / or polygonal, 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 includes a discharge electrode and an adsorption electrode, the adsorption electrode is the electric field unit according to 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 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 polygon cross-section, and the discharge electrode passes through the center of the inscribed circle of 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 formed by connecting a plurality of electric field units according to any one of the embodiments.

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

[0082] In one embodiment, the plurality of electric field units are riveted 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 includes a discharge electrode and an adsorption electrode, the adsorption electrode is the electric field adsorption device according to 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 a slender strip shape and is made of any one of 304 stainless steel, titanium, tungsten, and iridium gold.

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

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

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

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

[0090] In one embodiment, the inner cross-section of the clamping member is in a groove shape.

[0091] In one embodiment, the connecting component includes a rivet or a bolt.

[0092] In one embodiment, the electric field unit has a plurality of side walls, and both ends of the side walls have bent flanging portions. The flanging portions of two adjacent side walls in the electric field unit are connected to form a connection end. In the connection ends of two adjacent electric field units, the flanging portions are aligned in sequence to form a unit connection end. Two adjacent electric field units are connected at the unit connection end. The auxiliary adsorption member is arranged outside the unit connection end. The plurality of flanging portions and the auxiliary adsorption member in the unit connection end 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 a sheet shape.

[0095] In one embodiment, the cross-section of the gasket is in an L shape.

[0096] 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 axially, a plurality of side walls are formed around the channel, and 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 flow out of the channel. Among them, no air inlet hole or air outlet hole is provided on the midline of at least one of the plurality of side walls extending in the channel direction.

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

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

[0099] In one embodiment, no air inlet hole or air outlet hole is provided within a predetermined range on both sides of the midline of each side wall extending in the channel direction.

[0100] In one embodiment, a plurality of the intake holes and / or a plurality of the outlet holes are provided on the same side wall, and the plurality of intake holes and / or the plurality of outlet holes are respectively arranged in multiple columns along the axial direction of the channel.

[0101] In one embodiment, the plurality of intake holes or the plurality of outlet holes on each side wall are respectively arranged in two columns along the axial direction and are respectively provided on both sides of the midline of the side wall.

[0102] In one embodiment, the plurality of intake holes or the plurality of outlet holes are uniformly distributed along the axial direction.

[0103] In one embodiment, the shape of the intake hole and / or the outlet hole is circular, oval, or polygonal. 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 intake holes and / or the 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 polygonal, 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 containing stainless steel and / or aluminum.

[0107] 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, and a plurality of side walls are formed around the channel. The plurality of side walls are sequentially connected and are provided with intake holes for gas to enter the channel and outlet holes for gas to discharge from the channel. Among them, two columns of intake holes or outlet holes are arranged along the axial direction on each side wall, and the two columns of intake holes or outlet holes on each side wall are arranged on both sides of the midline 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 hexagon 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, an electric field device is provided, characterized in that it includes a discharge electrode and an adsorption electrode. The adsorption electrode is the electric field unit according to any one of the embodiments, and an electric field is formed between the discharge electrode and the adsorption electrode.

[0111] In one embodiment, the discharge electrode is arranged in the 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 includes 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 disposed in the channel of the electric field unit, and no air inlet hole or air outlet hole being provided at the closest distance between the discharge electrode and the side wall.

[0113] In one embodiment, the discharge electrode is disposed 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 polygon cross-section, and the discharge electrode passes through the center of the inscribed circle of 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 overall structure formed by connecting a plurality of electric field units, the electric field unit being 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 includes a discharge electrode and an adsorption electrode, the adsorption electrode being the electric field adsorption device described in any one of the embodiments, the discharge electrode being inserted into the channel of the electric field unit, and an electric field being 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. 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 is Figure 2A a view in the direction of C of the electric field unit;

[0122] Figure 3 is a top cross-sectional schematic diagram 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 is Figure 4A a cross-sectional schematic diagram;

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

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

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

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

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

[0130] Figure 9B It is Figure 9A a top view of;

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

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

[0133] Figure 12 It is Figure 11 a three-dimensional exploded schematic diagram of;

[0134] Figure 13 It is a sectional schematic diagram of a clamping part according to an embodiment of the present invention;

[0135] Figure 14 It is a sectional schematic diagram of an elastic part according to an embodiment of the present invention;

[0136] Figure 15 It is a sectional schematic diagram of an elastic part according to an embodiment of the present invention. Detailed implementation manners

[0137] The following will describe in detail the preferred embodiments of the present invention with reference to the accompanying drawings to more clearly understand the purpose, features, and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not a limitation on the scope of the present invention, but only to illustrate the essential spirit of the technical solution of the present invention.

[0138] In the following description, for the purpose of explaining various disclosed embodiments, certain specific details are set forth 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 instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail so as not to unnecessarily obscure the description of the embodiments.

[0139] References to "one embodiment" or "an embodiment" throughout the specification mean 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. Additionally, 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 terms will be used for description. However, words such as "front", "rear", "left", "right", "outer", "inner", "outward", "inward", "up", "down", etc. should be understood as convenient terms and not as limiting terms.

[0141] According to one aspect of the present invention, an electric field unit is provided. The electric field unit has a channel extending axially, 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 exit the channel.

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

[0143] It should be noted that the above-mentioned electric field unit can be used as the adsorption electrode of an electric field device. When the discharge electrode of the electric field device discharges and ionizes, the particulate matter in the gas combines with the charged ions, so that the particulate matter in the gas obtains a charge. The charged particulate matter moves towards the adsorption electrode and deposits on the adsorption electrode. When the gas enters in a direction not parallel to the side wall of the electric field unit, that is, the gas inlet direction is not perpendicular to the ion flow direction in the electric field. Compared with the electric field where the gas inlet 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 deposits on the adsorption electrode, thereby improving the dust removal efficiency.

[0144] It should also be noted that when the centers of the intake holes and the exhaust holes are arranged in different planes perpendicular to the axial direction, the gas flow in the channel can be made disordered, further increasing the residence time of the gas in the electric field, increasing the frequency of contact with the discharge electrode at close range, and improving the charging efficiency and charge amount of the particulate matter. Moreover, when the gas forms a cyclone flow, it is beneficial to the separation of large particles. Combining the above two points can effectively improve the dust removal efficiency. Additionally, it should be noted that no intake holes or exhaust holes are provided on the midline extending along the channel direction of at least one of the multiple side walls, which can prevent the area at the midline position from being defective. After the particulate matter is charged, it is directly adsorbed near the midline of the adsorption electrode, increasing the adsorption amount of the particulate matter on the adsorption electrode, thereby improving the dust removal efficiency. Among them, the particulate matter includes, but is not limited to, solid particles, liquid droplets, solid particles attached with liquid, aerosols, solid particles or liquid droplets in a 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 according to 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 the 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 left and right. Adjacent electric field units 2000 share a side wall. The cross-section of the channel of each electric field unit 2000 surrounded by the side wall and perpendicular to the axial direction is an equilateral triangle. In other embodiments, the number of electric field units in the electric field adsorption device is not limited to this, and can be adjusted according to the actual gas flow rate to be purified. Moreover, the arrangement manner of multiple electric field units can be adjacent or non-adjacent in any direction such as up, down, left, right, front, and back. In this embodiment, for the convenience of production and processing, the structures and shapes of the twelve electric field units are the same. However, in other embodiments, according to the device space storage conditions or other factors, the structures and sizes of multiple electric field units can also be different or partially the same.

[0146] Refer to Figure 1, taking the structures of the first electric field unit 2100 and the second electric field unit 2200 as examples for illustration, and the structures of other electric field units can be deduced by analogy. The first electric field unit 2100 has a first channel 2110 extending along the axial direction, where the axial direction is the same as the direction of the central axis along which the electric field unit 2100 extends in the direction of the first channel 2110. A side wall 2120 is formed around the first channel 2110. The side wall 2120 is provided with a first air inlet hole 213 for gas to enter the channel 2110 and a first air outlet hole 214 for gas to discharge from the channel. The number of the first air inlet holes 213 and the first air outlet holes 214 is multiple. Preferably, the apertures of the multiple first air inlet holes 213 and the multiple first air outlet holes 214 are the same. The multiple first air inlet holes 213 are uniformly arranged in a column along the axial direction on the first side wall 2121, and the multiple first air outlet holes 214 are uniformly arranged in a column along the axial direction on the second side wall 2122. No air inlet hole or air outlet hole is provided on the third side wall 2123. The centers of the first air inlet holes 213 and the centers of the first air outlet holes 214 are arranged in 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. The two surfaces of the second side wall 2122 face the first channel 2110 of the first electric field unit 2100 and the second channel 2210 of the second electric field unit 2200 respectively. That is to say, the first air outlet hole 214 on the second side wall 2122 of the first adsorption unit 2100 is used as the second air inlet hole of the second side wall 2122 of the second adsorption unit 2200 to ensure that gas directly enters the second electric field unit 2200 from the first electric field unit 2100. Multiple second air outlet holes 224 are arranged in a column along the axial direction on the fourth side wall 2222 of the second adsorption unit 2200, and no air inlet hole and / or air outlet hole is provided on the fifth side wall 2223 of the second adsorption unit 2200.

[0147] Referring to Figure 1 , each discharge electrode 209 is arranged in the channel of the corresponding electric field unit 2000. Since the cross-section perpendicular to the axial direction of the channel of each electric field unit 2000 surrounded by the side wall is an equilateral triangle, 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, where the discharge efficiency is the highest here. 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 relationships between other discharge electrodes and the electric field units are similar and will not be elaborated here.

[0148] Continuing to refer to Figure 1, all the electric field units 2000 are electrically connected to the same pole of the power supply, and all the 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, while 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, while 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, multiple electric field units can be divided into two groups, and the two groups of electric field units are combined together in a form arranged in more than two rows. The electric field units in each row are 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 air flow 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 sequence, the particulate matter in the gas is respectively given negative charges and positive charges, so that the negatively charged particulate matter in the gas is deposited on the first group of electric field units, and the positively charged particulate matter in the gas is deposited on the second group of electric field units, improving the dust removal efficiency.

[0150] Refer to Figure 1 , taking the gas flow direction of the first electric field unit 2100 and the second electric field unit 2200 as an example, the gas flow directions of other electric field units are similar to this and will not be elaborated. Since the centers of the first intake hole 213 and the first outlet hole 214 in the first electric field are arranged in different planes perpendicular to the axial direction, and the centers of the second intake hole and the second outlet hole 224 in the second electric field are arranged in different planes perpendicular to the axial direction, the gas flow directions through the first electric field and the second electric field are disordered, further increasing the residence time of the gas in the two electric fields and increasing 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, improving the charging efficiency and the amount of charge carried by the particulate matter; and when the gas forms a cyclone flow direction, it is beneficial to the separation of large particles. Combining the above two points, the dust removal efficiency is effectively improved.

[0151] In other embodiments, air inlet holes may also be formed on the fifth sidewall 2223 of the second electric field unit 2200. In this case, the airflows of the second electric field unit 2200 and the third electric field unit 2300 are in communication, and the gas can flow from the third electric field unit 2300 to the second electric field unit 2200. However, in other embodiments, air inlet holes or air outlet holes may be formed on the sidewalls of each electric field unit, resulting in the gas of each electric field unit being sourced from multiple adjacent electric field units and flowing to multiple adjacent electric field units. The gas flow direction is highly disordered, and the airflow passing near the discharge electrode increases, improving the charging efficiency and charge amount of particulate matter in the gas and enhancing the dust removal efficiency.

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

[0153] Referring to Figure 2A , the electric field unit 710 has a channel 711 extending along the axial direction, and the axial direction is the same as the direction of the central axis along which the electric field unit 710 extends in the channel direction. Three sidewalls 712 are formed around the channel 711, including a first sidewall 7121, a second sidewall 7122, and a third sidewall 7123. The first sidewall 7121, the second sidewall 7122, and the third sidewall 7123 have the same axial length along the electric field unit 710. The cross-section of the channel 711 surrounded by the first sidewall 7121, the second sidewall 7122, and the third sidewall 7123 is preferably an equilateral triangle. The cross-section refers to the cross-section perpendicular to the axial direction. However, in other embodiments, the electric field unit may include more than three sidewalls. For example, the electric field unit may include three, four, five, or six, or even more sidewalls. The cross-section of the channel surrounded by the sidewalls may be a triangle, a quadrilateral, a pentagon, or a hexagon, or other polygons. Preferably, the cross-section of the channel surrounded by the sidewalls is a regular polygon. The electric field unit may also include only one sidewall, that is, the cross-section of the channel surrounded by the sidewall is a circle or an ellipse. More preferably, the inner angle of the regular polygon cross-section of the channel surrounded by the sidewalls is an integer divisor of the number 360, which is beneficial for seamless splicing of multiple electric field units within 360 degrees in a plane and simplifies the manufacturing process. Even more preferably, the cross-section of the channel surrounded by the sidewalls is an equilateral triangle or a regular hexagon.

[0154] In one embodiment, the first sidewall 7121, the second sidewall 7122, and the third sidewall 7123 each have a sidewall main body and flanging portions bent from the sidewall main body perpendicular to the two ends of the channel respectively. The connecting member is disposed at the flanging portions of adjacent two sidewalls to fixedly connect the adjacent two sidewalls. Since the sidewalls connected by the connecting member can not only achieve standardized and batch production, are convenient to process and have high efficiency, but also have the advantages of simple assembly, detachable and convenient for packaging and transportation.

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

[0156] Continuing to refer to Figure 2A , the flanging portion of each sidewall extends along the extending direction of the channel 711, and the flanging portions of adjacent two sidewalls are aligned and cooperated and connected by a connecting member, so as to fixedly connect the adjacent two sidewalls through the flanging portion and the connecting member. For example, a plurality of through holes 718 arranged along the extending direction of the channel are respectively provided on each flanging portion, and the connecting member is inserted into and fixed in the through holes 718, so as to fixedly connect the adjacent sidewalls. Preferably, through holes 718 are respectively provided at both ends of each flanging portion along the channel. Preferably, through hole connecting members are provided at the ends of each flanging portion. The connecting member can be a rivet, a screw, etc. The adjacent two sidewalls are connected by rivet connection, bolt connection, screw connection, etc. In this embodiment, the adjacent two sidewalls are sequentially riveted by rivets.

[0157] Referring to Figure 2A , Figure 3, in this embodiment, the first sidewall right-folded edge portion 71213 of the first sidewall 7121 and the second sidewall right-folded edge portion 71223 of the second sidewall 7122 are riveted by a rivet 99 to form a connection top end. The left-folded edge portion 71222 of the second sidewall 7122 and the left-folded edge portion 71232 of the third sidewall 7123 are riveted by a rivet 99 to form a first connection bottom end. The left-folded edge portion 71212 of the first sidewall 7121 and the right-folded edge portion 71233 of the third sidewall 7123 are riveted by a rivet 99 to form a second connection bottom end.

[0158] In one embodiment, referring to Figure 2A , the sidewall 712 is provided with an air inlet hole 713 for the gas to enter the channel 711 and an air outlet hole 714 for the gas to discharge from the channel 711. The air inlet hole 713 and the air outlet hole 714 are preferably arranged on different sidewalls respectively. For example, the air inlet hole 713 is arranged on the third sidewall 7123. The air outlet hole 714 includes a first air outlet hole 7141 and a second air outlet hole 7142. The first air outlet hole 7141 is arranged on the first sidewall 7121, and the second air outlet hole 7142 is arranged on the second sidewall 7122. In this embodiment, the air inlet holes 713 or the air outlet holes 714 are arranged on all three sidewalls of the electric field unit 710. However, it should be understood that in other embodiments, the air inlet holes and / or the air outlet holes can be arranged on some sidewalls of the electric field unit. For example, the air inlet hole 713 is arranged on the third sidewall 7123, the first air outlet hole 7141 is arranged on the first sidewall 7121, and the second air outlet hole 7142 is no longer arranged on the second sidewall 7122, or the air inlet hole 713 is arranged on the third sidewall 7123, the second air outlet hole 7142 is arranged on the second sidewall 7122, and the first air outlet hole 7141 is no longer arranged on the first sidewall 7121. In addition, in other embodiments, the air inlet holes and the air outlet holes can also be arranged at different positions on the same sidewall. For example, the air inlet hole is arranged at the upper part of the sidewall and the air outlet hole is arranged at the lower part of the sidewall, or the air inlet hole is arranged on the left side of the sidewall and the air outlet hole is arranged on the right side of the sidewall. Those skilled in the art should understand that the positions of the air inlet holes and the air outlet holes are not limited to the above-listed manners.

[0159] In one embodiment, referring to Figure 2A , no air inlet hole or air outlet hole is provided on the center line along the channel direction of at least one sidewall among the multiple sidewalls, and the distance between the center line of this sidewall and the center line of the channel is the shortest. Preferably, no air inlet hole or air outlet hole is provided within a range of 2 - 50 mm on both sides of the center line along the channel direction of each sidewall.

[0160] Referring to Figure 2A, the side wall of the air inlet hole is provided, for example, the third side wall 7123 is provided with a plurality of air inlet holes 713; the side walls of the air outlet holes, such as the first side wall 7121 and the second side wall 7122, are provided with a plurality of air outlet holes 714. The plurality of air inlet holes 713 are uniformly arranged in two rows along the axial direction on the third side wall 7123, the plurality of first air outlet holes 7141 are uniformly arranged in two rows along the axial direction on the first side wall 7121, and the plurality of second air outlet holes 7142 are uniformly arranged in two rows along the axial direction on the second side wall 7122. Preferably, the two rows of air inlet holes and / or air outlet holes are respectively arranged on both sides of the midline of the side wall. For example, the plurality of first air inlet holes 7141 are arranged in two rows and are arranged on both sides at a certain distance from the midline of the first side wall 7121, and preferably, the two rows of first air inlet holes 7141 are symmetrically arranged with respect to the midline of the first side wall 7121. In other embodiments, the plurality of air inlet holes and / or air outlet holes may also be arranged in one row or more than one row along the axial direction, and the air inlet holes and / or air outlet holes may also be arranged on the side wall in a non-uniform form. In this embodiment, the plurality of air inlet holes 713 are arranged along the axial direction from one end of the third side wall 7123 to the other end of the third side wall 7123, the plurality of first air outlet holes 7141 are arranged along the axial direction from one end of the first side wall 7121 to the other end of the first side wall 7121, and the plurality of second air outlet holes 7142 are arranged along the axial direction from one end of the second side wall 7122 to the other end of the second side wall 7122. In other embodiments, according to the actual needs of air intake or air outlet, the air inlet holes or air outlet holes may also be axially distributed on a part of the side wall.

[0161] Figure 2B Yes Figure 2A C-direction view of the electric field unit, as Figure 2B shown, the centers of the air inlet holes 713 and the centers of the air outlet holes 714 are arranged in different planes perpendicular to the axial direction. That is to say, the connection line between the centers of the air inlet holes 713 and the centers of the air outlet holes 714 is not perpendicular to the axial direction. This structure enables the gas to enter the internal channel of the electric field unit 710 through the air inlet holes 713 when the gas enters in a direction not parallel to the side wall of the electric field unit, and the gas cannot be directly discharged through the air outlet holes, resulting in a disordered gas flow direction, increasing the residence time in the channel, and even forming a cyclone-like gas flow direction, and then being discharged from the electric field unit 710 through the air outlet holes 714. In this embodiment, the centers of the air inlet holes 713 and the centers of the first air outlet holes 7141 and the second air outlet holes 7142 are arranged in different planes perpendicular to the axial direction. The centers of the first air outlet holes 7141 and the second air outlet holes 7142 may be arranged in the same plane perpendicular to the axial direction or may be arranged in different planes perpendicular to the axial direction. When the number of the air inlet holes 713 and the air outlet holes 714 is multiple, preferably, the center of any one air inlet hole and the center of any one air outlet hole are arranged in different planes perpendicular to the axial direction.

[0162] Refer to Figure 2B, the air inlet hole 713 and the air outlet hole 714 are circular holes with the same diameter. However, in other embodiments, the air inlet hole and the air outlet hole can be oval holes, triangular holes, quadrilateral holes or pentagonal holes; the diameters of the air inlet hole and the air outlet hole can also be different, but it is necessary to ensure that the gas cannot be discharged directly through the air outlet hole without obstruction, that is, if the two side walls are overlapped, the air inlet hole and the air outlet hole will not completely overlap or one air inlet hole / air outlet hole will not completely contain the other air outlet hole or air inlet hole, so as to ensure that the gas will encounter obstruction during flow, so that when the air flow flows in from the air inlet hole and flows out from the air outlet hole, the direction is changed and a cyclone path is formed in the channel, and then the air is discharged from the air outlet hole through the electric field unit.

[0163] In one embodiment, the total area ratio of the air inlet hole or the air outlet hole on one 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 hole or the air outlet hole on one 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%, more preferably, equal to 49%, not only the ventilation volume is increased, but also the strength and rigidity of the side wall can be guaranteed to the greatest extent.

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

[0165] Figure 3 is a top view sectional schematic diagram of an electric field device according to 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 electric field units. In this embodiment, the adsorption electrode 710 can also be referred to as the electric field unit 710. The same parts as above are not described in detail, and only the differences in this embodiment are described.

[0166] As 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 side walls and perpendicular to the axial direction is an equilateral triangle. The discharge electrode 719 is preferably arranged parallel to the side wall of the channel and passes through the center of the inscribed circle of the cross-section, where the discharge efficiency is the highest. However, in other embodiments, the cross-section of the channel surrounded by the side walls and perpendicular to the axial direction can be other polygons. The discharge electrode is arranged parallel to the side wall 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 polygon cross-section. For example, when the cross-section of the channel surrounded by the side walls 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 side walls 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 walls 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. Those skilled in the art can understand that due to the limitations of actual processing conditions, the discharge electrode may be arranged slightly deviated 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 an elongated needle-shaped conductor. In other embodiments, the discharge electrode can also be a polygonal, burr-shaped, threaded rod-shaped or columnar conductor. In this embodiment, the diameter of the discharge electrode 719 is 01 - 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] Refer to Figure 3, the electric field unit 710 is electrically connected to one electrode of the power supply, and the discharge electrode 719 is electrically connected to the other electrode of the power supply. 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 supply, and the discharge electrode 719 is electrically connected to the cathode of the power supply, 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 can also be electrically connected to the cathode of the power supply, and the discharge electrode 719 is electrically connected to the anode of the power supply, 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 supply and the discharge electrode 719 is electrically connected to the cathode of the power supply, the gas enters in a direction not parallel to the side wall of the electric field unit 710. The discharge electrode 719 discharges and ionizes, so that the particulate matter in the gas obtains a negative charge. The negatively charged particulate matter moves towards the electric field unit 710 and deposits on the electric field unit 710. When the centers of the intake holes on the side wall of the electric field unit 710 and the centers of the outlet holes are arranged in different planes perpendicular to the axial direction, the gas flow in the channel 711 can be disordered, further increasing the residence time of the gas in the channel 711 and increasing the frequency of close contact with the discharge electrode 719. The closer to the discharge electrode 719, the higher the gas ionization efficiency, thereby improving the particulate charging efficiency and the charge amount; and when the gas forms a cyclone flow direction, it is beneficial to the separation of large particles. Combining the above two points, the dust removal efficiency is effectively improved.

[0170] Figure 4A 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 same parts of the adsorption electrode and the discharge electrode as above will not be described in detail, and only the differences in this embodiment will be described.

[0171] Refer to 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 the first electric field unit 810, the second electric field unit 820, the third electric field unit 830, the fourth electric field unit 840, the fifth electric field unit 850, the sixth electric field unit 860, the seventh electric field unit 870, and the eighth electric field unit 880. The eight electric field units are arranged adjacent to each other left and right. Adjacent electric field units share a side wall. The cross-section perpendicular to the axial direction of the channel of each electric field unit surrounded by the side wall is an equilateral triangle. In other embodiments, the number of electric field units in the electric field adsorption device is not limited to this, and the number of electric field units can be adjusted according to the actual gas volume to be purified. Moreover, the arrangement of multiple electric field units can be adjacent or non-adjacent in any direction such as up, down, left, right, front, and back. In this embodiment, for the convenience of production and processing, the structures and shapes of the eight electric field units are the same. However, in other embodiments, according to the device space storage conditions or other factors, the structures, sizes of multiple electric field units can also be different or partially the same.

[0172] Refer to Figure 4A , the discharge electrode 809 includes the first discharge electrode 819, the second discharge electrode 829, the third discharge electrode 839, the fourth discharge electrode 849, the fifth discharge electrode 859, the sixth discharge electrode 869, the seventh discharge electrode 879, and the eighth discharge electrode 889. Each discharge electrode is disposed in the channel of the corresponding electric field unit. Since the cross-section perpendicular to the axial direction of the channel of each electric field unit surrounded by the side wall is an equilateral triangle, the discharge electrode 809 is preferably disposed 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, where the discharge efficiency is the highest. For example, the first discharge electrode 819 is disposed in the channel of the first electric field unit 810 and is preferably disposed 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, and so on for the relationship between other discharge electrodes and electric field units.

[0173] Refer to Figure 4A, taking the structures of the first electric field unit 810 and the second electric field unit 820 as examples for illustration, and the structures of other electric field units can be deduced by analogy. The first electric field unit 810 includes a first channel 811 extending axially, a side wall 812 is formed around the first channel 811, a first air inlet hole 813 for gas to enter the channel 811 and a first air outlet hole 814 for gas to discharge from the first channel 811 are provided on the side wall 812. The number of the first air inlet holes 813 and the first air outlet holes 814 is multiple. The multiple first air inlet holes 813 are uniformly arranged in two columns axially on the first side wall 8121, and the multiple first air outlet holes 814 are uniformly arranged in two columns axially on the second side wall 8122. No air inlet hole or air outlet hole is distributed on the third side wall 8123. The centers of the first air inlet holes 813 and the centers of the first air outlet holes 814 are arranged in 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. Two surfaces of the second side wall 8122 face the first channel 811 of the first electric field unit 810 and the second channel 821 of the second electric field unit 820 respectively. That is to say, the first air outlet hole 814 on the second side wall 8122 of the first electric field unit 810 is used as the second air inlet hole 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. Multiple second air outlet holes 824 are provided on the fourth side wall 8222 of the second electric field unit 820 and are uniformly arranged in two columns axially. No air inlet hole and / or air outlet hole is provided on the fifth side wall 8223 of the second electric field unit 820.

[0174] Refer to Figure 4A, in this embodiment, all the electric field units are electrically connected to the same pole of the power supply, and all the 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 an example, 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 combined together in a form arranged in two or more rows. The electric field units in each row are 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 air flow passes through the electric fields formed by the first group of electric field units and the first group of discharge electrodes and the electric fields formed by the second group of electric field units and the second group of discharge electrodes in sequence, the particulate matters in the gas are respectively given negative charges and positive charges, so that the particulate matters with negative charges in the gas are deposited on the first group of electric field units, and the particulate matters easy to combine with positive charges in the gas are deposited on the second group of electric field units, improving the dust removal efficiency.

[0175] Refer to Figure 4A, taking the gas flow direction of the first electric field unit 810 and the second electric field unit 820 as an example, the gas flow directions of other electric field units can be inferred by analogy. 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 centers of the first air inlet 813 and the first air outlet 814 are arranged in different planes perpendicular to the axial direction and the centers of the second air inlet (the second air inlet is the first air outlet 814 in this embodiment) and the second air outlet 824 are arranged in different planes perpendicular to the axial direction, the gas flow directions through the first electric field and the second electric field are disordered, further increasing the residence time of the gas in the two electric fields and increasing the frequency of contact with the first discharge electrode 819 and the second discharge electrode 829 at close range. The closer to the discharge electrode 809, the higher the gas ionization efficiency, improving the particulate charging efficiency and the charge amount; and when the gas forms a cyclone flow direction, it is beneficial to the separation of large particles. Combining the above two points, the dust removal efficiency is effectively improved. In other embodiments, if an air inlet is opened on the fifth side wall 8223 of the second electric field unit 820, then 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, air inlets or air outlets can be opened on the side walls of each electric field unit, resulting in the gas in each electric field unit being able to originate from multiple adjacent electric field units and also flow to multiple adjacent electric field units. The gas flow direction is highly disordered, and there are more airflows passing near the discharge electrode, increasing the particulate charging efficiency and the charge amount in the gas and improving the dust removal efficiency.

[0176] Figure 5 is a front view schematic diagram of an electric field device including a top plate and a floor. The electric field device 80 further includes a top plate 81 and a bottom plate 82. The top plate 81 and the bottom plate 82 are respectively connected to both ends of the electric field adsorption device 800, that is, respectively connected to both ends of each electric field unit in the electric field adsorption device 80, and seal both ends to ensure that the gas only enters and exits through the air inlet or air outlet of each electric field unit. It should be noted that the top plate 81 and the bottom plate 82 are only for convenience of description and are not intended to limit their orientations. That is, the top plate 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, it can be arranged at both ends of the electric field adsorption device 800 according to the placement orientation of the electric field device 80 to seal the channels of each electric field unit.

[0177] Figure 6It is a schematic cross-sectional exploded view of an electric field unit assembly according to 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 axially, and a side wall 912 is formed around the channel 911. The side wall 912 is provided with an air inlet hole for gas to enter the channel and an air outlet hole for gas to discharge from the channel. The auxiliary adsorption mechanism 920 has a porous structure and is arranged on one side of at least a part of the side wall 912 of the electric field unit 910, and the at least a part is provided with an air inlet hole and / or an air outlet hole. The parts of the electric field unit that are the same as above will not be described again. Only the differences in this embodiment will be described.

[0178] Referring to Figure 6 , the side wall 912 of the electric field unit 910 includes the inner surface 9121 and the 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 hole and / or an air outlet hole. The gas passes through in a manner not parallel to the side wall 912 of the electric field unit 910. The porous auxiliary adsorption mechanism 920 can filter out some particles in the gas at the air inlet end and the air outlet end through 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 the outer surface of the side wall of the electric field unit provided with an air inlet hole and / or an air outlet hole. In this embodiment, there is a gap between the auxiliary adsorption mechanism 920 and the electric field unit 910. Preferably, the distance between the auxiliary adsorption mechanism 920 and the electric field unit 910 is less than or equal to 50 mm. 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. In other embodiments, the auxiliary adsorption mechanism 920 is adhesively attached to the entire outer surface 9122 of the side wall 912 of the electric field unit 910. The attachment can be understood as that there is theoretically no gap between the auxiliary adsorption mechanism 920 and the electric field unit 910. In other embodiments, the attachment method can also be selected from mortise and tenon fixation, rivet fixation or other mechanical fixation methods. Among them, for mortise and tenon fixation, the auxiliary adsorption mechanism can be fixed on a frame first, and then the frame is mortise and tenon fixed to the electric field unit. 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 attached to the side wall 912 of the electric field unit 910, and this gap can be ignored.

[0179] Referring to Figure 6, in this embodiment, the auxiliary adsorption mechanism 920 is composed of a 60-mesh polytetrafluoroethylene film. Since polytetrafluoroethylene is an electret material, when an electric field is used to charge the electret material, the self-generated electret electric field of the electret material can have an electrostatic adsorption effect on charged particulate matters. Moreover, when the electric field suddenly disappears, the electret electric field will not disappear and can continue to remove dust. In other embodiments, the pore size of the auxiliary adsorption mechanism can also be selected from one or more of 40 mesh - 100 mesh. The finer the pore size, the greater the air resistance of the gas and the greater the energy consumption. Preferably, the pore size of the auxiliary adsorption mechanism can also be selected from one or more of 40 mesh - 80 mesh; it can also be composed of a combination of multiple layers of films, and the porous structures overlap and communicate with 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. Among them, the conductive materials can be selected from one or more of metals or alloys, and the electret materials can be selected from inorganic compounds with electret properties and / or organic compounds with electret properties. The inorganic compounds are selected from one or more combinations of silicon dioxide, barium titanate, lead zirconate titanate, zinc oxide, tantalum oxide, aluminum oxide, titanium oxide, silicon nitride, etc. The organic compounds are selected from one or more combinations of fluorocarbon polymers, polycarbonates, polypropylenes, polyethylenes, polyvinyl chlorides, natural waxes, resins, rosin, etc. The fluorocarbon polymers are selected from one or more combinations of polytetrafluoroethylene, polyvinylidene fluoride, perfluoroethylene-propylene copolymer, soluble perfluoroethylene-propylene copolymer, soluble polytetrafluoroethylene, etc.

[0180] An embodiment of the present invention provides an electric field unit assembly. The same parts as those in the above text of the electric field adsorption assembly will not be described again, and only the differences in this embodiment will be described.

[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 hole for gas to enter and / or an air outlet hole for gas to exit. The auxiliary adsorption mechanism has a porous structure and is arranged on one side of at least a part of the side wall of the electric field unit, and the at least a part is provided with the air inlet hole and / or the air outlet hole. Preferably, there is a gap between the auxiliary adsorption mechanism and at least a part of the electric field unit. Preferably, the distance between the auxiliary adsorption mechanism and at least a part of the electric field unit is less than or equal to 50 mm. The gas in this distance space will be mixed again, and the mixed gas will then pass through the electric field unit or the auxiliary adsorption mechanism to remove particles. 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. In other embodiments, the auxiliary adsorption mechanism can also be attached to at least a part of the surface of the side wall of the electric field unit.

[0182] Among them, the electric field unit can be plate-shaped. The plate-shaped electric field unit can serve as one pole for forming 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. 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 the anode for forming the electric field. The gas passes through in a manner not parallel to the side wall of the electric field unit. The auxiliary adsorption mechanism with a porous structure can filter out some particles in the gas at the inlet end and the outlet end through physical filtration. When the auxiliary adsorption mechanism is composed of electret materials, after the electric field performs electret charging on the electret materials, the self-generated electret electric field of the electret materials can have an electrostatic adsorption effect on charged particulate matters, and when the electric field suddenly disappears, the electret electric field will not disappear and can continue to perform dust removal.

[0183] Figure 7 FIG. Figure 7 is a schematic exploded perspective view of an electric field adsorption device according to an embodiment of the present invention. The electric field adsorption device 1000 includes eight electric field units and an auxiliary adsorption mechanism 1020. The electric field unit has a channel extending axially, and side walls 1010 are formed around the channel. The side walls are provided with air inlet holes for gas to enter the channel and air outlet holes for gas to discharge from the channel. The auxiliary adsorption mechanism 1020 has a porous structure and is arranged on one side of at least a part of at least one side wall 1010 of at least one electric field unit. The at least a part is provided with the air inlet holes and / or the air outlet holes. The auxiliary adsorption mechanism 1020 is composed of a 60-mesh polytetrafluoroethylene film. The same parts of the electric field unit, the auxiliary adsorption mechanism, and the electric field adsorption device as those described above will not be elaborated again. Only the differences in this embodiment will be described.

[0184] The side wall 1010 of the electric field adsorption device 1000 includes a first type of side wall 1011 and a second type of side wall 1012. A channel is arranged on one side of the first type of side wall 1011, and a channel is arranged on each of the two sides of the second type of side wall 1012. The first type of 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 part of the outer surface of the first type of side wall 1011. In this embodiment, the auxiliary adsorption mechanism 1020 is arranged on one side of at least a part of the outer surface of the first type of side wall 1011 and there is a gap between the auxiliary adsorption mechanism 1020 and the outer surface of the first type of side wall 1011. Preferably, the distance between the auxiliary adsorption mechanism 1020 and the outer surface of the first type of 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 pass through 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. In other embodiments, the auxiliary adsorption mechanism 1020 is arranged to fit at least a part of the outer surface of the first type of side wall 1011. In this embodiment, the electric field adsorption device has 10 first type of side walls 1011, and 8 of the first type of side walls 1011 are provided with air inlets and / or air outlets. 8 auxiliary adsorption mechanisms 1020 are respectively arranged on one side of the outer surfaces of the 8 first type of side walls 1011 provided 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 part of the surface of the second type of side wall. Preferably, there is a certain distance between the auxiliary adsorption mechanism and at least a part of the surface of the second type of side wall; preferably, the distance between the auxiliary adsorption mechanism and at least a part of the surface of the second type of side wall is less than or equal to 50 mm. In other embodiments, the auxiliary adsorption mechanism is arranged to fit at least a part of the surface of the second type of side wall.

[0185] Figure 8 FIG. 4 is a three-dimensional exploded schematic view of an electric field adsorption device according to 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 only include 12 electric field units. The electric field unit has a channel extending along 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 discharge from the channel. The auxiliary adsorption mechanism 1120 has a porous structure and is arranged on one side of at least a part of at least one side wall 1110 of at least one electric field unit, and at least a part of the side wall is provided with the air inlet or the air outlet. The auxiliary adsorption mechanism 1020 is composed of a 60-mesh polytetrafluoroethylene film. Wherein, the same parts of the electric field unit, the auxiliary adsorption mechanism, and the electric field adsorption device as above are not described in detail, and only the differences in this embodiment are described.

[0186] The side wall 1110 of the electrokinetic adsorption device 1100 includes a first type of side wall 1111 and a second type of side wall 1112. A channel is arranged on one side of the first type of side wall 1111, and one channel is arranged on each side of the second type of side wall 1112. The first type of 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 of side wall 1111. In this embodiment, the auxiliary adsorption mechanism 1120 is arranged on one side of at least a part of the outer surface of the first type of side wall 1111 and there is a gap between the auxiliary adsorption mechanism 1120 and the outer surface of the first type of side wall 1111. Preferably, the auxiliary adsorption mechanism 1120 is arranged on one side of at least a part of the outer surface of the first type of side wall 1111 and the distance between the auxiliary adsorption mechanism 1120 and the outer surface of the first type of side wall 1111 is less than or equal to 50 mm. The gas in this distance space will be mixed again, and the mixed gas will then pass through 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 part 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 arranged on one side of at least a part 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 distance between the auxiliary adsorption mechanism and the surface of the second type of side wall is less than or equal to 50 mm. In other embodiments, the auxiliary adsorption mechanism is arranged in contact with at least a part of the surface of the second type of side wall.

[0187] An embodiment of the present invention provides an electric field device, which includes a discharge electrode and an adsorption electrode. The adsorption electrode is composed of the electric field adsorption component described in the above embodiment. The same parts as those in the above embodiment will not be described again, and only the differences in this embodiment will be described. The discharge electrode can be composed of an elongated or flat conductor and is arranged on one side of the flat adsorption electrode. When the discharge electrode is a flat conductor, a plurality of air holes can be provided on the side wall of the discharge electrode for gas flow. In other embodiments, the adsorption electrode can also be composed of an electric field unit component in which the channels of the electric field unit in the above embodiment are surrounded by side walls and the cross-section perpendicular to the axial direction is polygonal. The discharge electrode is arranged parallel to the side wall 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 perpendicular to the axial direction surrounded by the side walls of the channel is rectangular, 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 surrounded by the side walls of the channel is triangular, 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 perpendicular to the axial direction surrounded by the side walls of the channel 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, where the discharge efficiency 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. The gas enters in a direction not parallel to the side wall of the adsorption electrode. A part of the particulate matter in the gas is filtered by the auxiliary adsorption mechanism arranged on one side of the side wall provided with the air inlet before entering the electric field. The particulate matter entering the electric field obtains a negative charge due to ionization discharge. The negatively charged particulate matter moves towards the adsorption electrode and deposits on the adsorption electrode. The particulate matter not adsorbed by the electric field can also be filtered by the auxiliary adsorption mechanism arranged on one side of the side wall provided with the air outlet after leaving the electric field, improving the dust removal efficiency. When the auxiliary adsorption mechanism is composed of electret material, after the electret material is electret-charged by the electric field, the self-electret electric field of the electret material 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 can continue to remove dust.

[0189] An embodiment of the present invention provides an electric field device, including a discharge electrode and an adsorption electrode. The adsorption electrode is composed of the electric field adsorption device described in the above embodiment. The same parts of the electric field adsorption device and the electric field device as those above are not described again. Only the differences in this embodiment are described. The discharge electrode is arranged in the channel of each electric field unit in the electric field adsorption device. Preferably, when the cross-section perpendicular to the axial direction surrounded by the side walls of the channel 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, where the discharge efficiency 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 some particles in the gas at the inlet end and the outlet end through physical filtration. And after the electret material is electret-charged by the electric field, the electret electric field of the electret material itself can have an electrostatic adsorption effect on the charged particulate matter. Compared with the case without the auxiliary adsorption mechanism, the dust removal efficiency is increased by 10-20%. Since polytetrafluoroethylene is an electret material, when the active electric field suddenly disappears, the electret electric field of the auxiliary adsorption mechanism can also perform dust removal. Through experiments, it can be known that when the active electric field of the electric field adsorption device suddenly disappears, the dust removal efficiency of only using the auxiliary adsorption mechanism for dust removal can reach 30%.

[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 connectors. 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 integrally composed of two rows of electric field units. For the convenience of description, Figure 4BTaking the shown direction as a reference, the row of side walls facing the lower part is called the first row, and the row of side walls facing the upper part is called the second row. Among them, the first row is formed by sequentially connecting 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 with the same size and structure through their respective side walls located at the bottom, and the axes of their channels are parallel to each other and in the same plane. The second row is formed by sequentially connecting 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 with the same size and structure through their respective side walls located at the top. Specifically, in this embodiment, the side walls located at the bottom 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 are all provided with flanging parts. The flanging parts on the side walls located at the bottom of every two adjacent electric field units are aligned with each other. By connecting the connecting piece to the flanging part, the two adjacent electric field units are fixedly connected. For example, by using rivets to rivet the flanging parts of two adjacent electric field units to fixedly connect the two adjacent electric field units. Using rivets for riveting is not only convenient for processing, but also has good sealing performance. Riveting not only makes the sealing performance good between the connected side walls, but also the rivets will expand in the rivet holes during riveting, so that the rivets and the holes also have high sealing performance. Similarly, the side walls located at the top 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 are all provided with flanging parts. The flanging parts located at the top of two adjacent electric field units are aligned with each other. By connecting the connecting piece to the flanging part, the two adjacent electric field units are fixedly connected. Specifically, taking 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 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 flanging part 891 bent downward, and the bottom side wall of the first electric field unit 810 is provided with a second flanging part 892 bent downward. The first flanging part 891 and the second flanging part 892 are aligned with each other. By passing the connecting piece through the first flanging part 891 and the second flanging part 892, the first electric field unit 810 and the third electric field unit 830 are fixedly connected. The bottom side wall of the third electric field unit 830 is provided with a second flanging part 893 bent downward, and the bottom side wall of the fifth electric field unit 850 is provided with a first flanging part 894 bent downward. By passing the connecting piece through the first flanging part 894 and the second flanging part 893, the third electric field unit and the fifth electric field unit are fixedly connected. In this embodiment, the first flanging parts of multiple electric field units and the second flanging parts of adjacent units are preferably riveted by rivets. The connection method between 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 4B, in this embodiment, the first electric field unit 810 and the second electric field unit 820 share the second sidewall 8122. That is to say, the channels of the first electric field unit 810 and the second electric field unit 820 face the two sides of the second sidewall 8122 respectively. The upper end and the lower end of the second sidewall 8122 are respectively provided with an upper flanging portion 895 and a lower flanging portion 896. The upper flanging portion 895 and the lower flanging portion 896 are bent in different directions. The two sides of the upper flanging portion 895 are respectively aligned with the flanging portions of the third sidewall 8123 of the first electric field unit 810 and the fourth sidewall 8222 of the second electric field unit 820, and are fixedly connected by a connecting member such as a rivet. The fourth sidewall 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. The fourth sidewall 8222, the second sidewall 8122 and the fifth sidewall 8223 form the second electric field unit 820.

[0192] Similarly, multiple electric field units are connected in the above manner to form the electric field adsorption device 800. It should be noted that, in Figure 4B the illustrated embodiment, flanging portions are provided at both ends perpendicular to the axial direction of each sidewall of each electric field unit. The same electric field unit is fixedly connected by the cooperation of the flanging portions of adjacent sidewalls and then by means such as riveting. The different electric field units are connected by sharing a sidewall and fixedly connecting their respective other sidewalls to the shared sidewall. For example, the second sidewall 8122 shared by the first electric field unit 810 and the second electric field unit 820 is fixedly connected to the third sidewall 8123 of the first electric field unit 810 and the fourth sidewall 8222 of the second electric field unit 820 at the same time.

[0193] It should be noted that, in Figure 4B the illustrated embodiment, the flanging portions of the sidewalls located at the top (such as the fourth sidewall 8222) and the sidewalls located at the bottom (such as the first sidewall 8121) are bent substantially in a direction perpendicular to the main body portion of the sidewall where they are located, while the flanging portions of the sidewalls located in the middle (such as the second sidewall 8122) connecting the sidewalls at the top and the sidewalls at the bottom are bent substantially in a direction of 120 degrees with respect to the main body portion of the sidewall where they are located. Such an arrangement can facilitate the stable placement of the electric field adsorption device and facilitate the stacked placement of multiple layers.

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

[0195] Figure 9B is Figure 9A the top view of, referring to Figure 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 respectively. The first electric field unit 610 is enclosed by the first side wall 611, the second side wall 612, the third side wall 613, the fourth side wall 614, the fifth side wall 615, and the sixth side wall 616, and its cross-section is a regular hexagon. A plurality of air inlet holes and / or air outlet holes are provided on each side wall. The first electric field unit 610 shares the first side wall 613 of the first electric field unit 610 with the second electric field unit 620, and the first electric field unit 610 shares the fifth side wall 615 of the first electric field unit 610 with the third electric field unit 630.

[0196] In Figure 9A and 9B the embodiments shown, no air inlet holes or air outlet holes are provided on the midline of each side wall of each electric field unit extending along the channel direction. Specifically, taking the first electric field unit 610 as an example, no air inlet holes or air outlet holes are provided on the midline 617 of each side wall of the first electric field unit 610, so that a dust accumulation part is formed at the position of the side wall midline. When a discharge electrode is arranged on the center line of the channel of the electric field unit, the distance between the discharge electrode and the midline of the side wall is the shortest distance between the discharge electrode and the side wall, so 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 Figure 9AIn the illustrated embodiment, no air inlet or outlet is provided at the midline of each sidewall of each electric field unit. However, it is also possible to not provide air inlets or outlets only at the midline portions of one or more sidewalls of one or more electric field units. Although the effects in these cases are not as excellent as those of the Figure 9A illustrated embodiment, they still have certain technical effects. Compared with the solution of providing air inlets or outlets at the midline position, not providing air inlets or outlets at the midlines can achieve more efficient dust accumulation.

[0198] In addition, it should be noted that the midline in the present invention refers to the midline extending along the channel direction on the sidewall, and the distance from the midline to the two ends of the sidewall perpendicular to the channel is equal.

[0199] Figure 10 is a three-dimensional schematic diagram of an electric field device according to an embodiment of the present invention. The electric field device includes 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 electrode is Figure 9A and Figure 9B the illustrated electric field adsorption device 1100. The structural forms of the plurality of electric field units in the electric field adsorption device 1100 are the same. Among them, for the description of the adsorption electrode, reference is made to Figure 9A and Figure 9B the relevant description of the illustrated electric field adsorption device, which will not be elaborated here. As Figure 10 shown, no air inlet or outlet is provided at the portion of each sidewall of each electric field unit at the shortest distance 617 from the discharge electrode. For example, when the cross-section perpendicular to the axis of the channel of the electric field unit is a regular polygon, no air inlet or outlet is provided on the midline of each sidewall (such as the Figure 9A and 9B illustrated electric field adsorption device). For example, no air inlet or outlet is provided at the portion of each sidewall of the first electric field unit 610 closest to the discharge electrode 619, so that this portion forms a dust accumulation portion.

[0201] Referring to Figure 10 , the first discharge electrode 619 passes through 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 electric fields with a discharge electrode.

[0202] Since the cross-section perpendicular to the axial direction formed by the side walls surrounding the channels of each electric field unit is a regular hexagon, the discharge electrode is preferably arranged parallel to the side walls of the channels and passes through the center of the inscribed circle of the cross-section of the corresponding electric field unit, 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 walls of the channel and passes through the center of the inscribed circle of the cross-section of the first electric field unit 610, and so on for the relationship between other discharge electrodes and electric field units.

[0203] Referring to Figure 9B 、 Figure 10 , in this embodiment, A is the air inlet direction and B is the air outlet direction. Taking the flow of gas in the first electric field, the second electric field, and the third electric field as an example for description, and the situations of other electric fields can be deduced by analogy.

[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 inlet direction is not perpendicular to the ion flow direction in the first electric field; since 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 is disordered in the hollow electric field unit 610. The more particulate matter passes 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, since the first electric field has two inclined surfaces, the inclined surface air inlet makes the air flow more disordered in the hollow first electric field unit 610. After the number of collisions with the side walls increases, the frequency of passing near the first discharge electrode 619 is increased, and thus the adsorption efficiency is higher. After being processed by the first electric field, the gas is discharged through the air outlet holes on the third side wall 613, the fourth side wall 614, and the fifth side wall 615 respectively, 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. 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 entering directions of these gases are not perpendicular to the ion flow direction in the second electric field. Due to the staggered arrangement of the air inlet holes and the air outlet holes, the airflow is disordered in the hollow electric field unit 620. The more the airflow passes near the discharge electrode 629, the more the particulate matter collides with the second discharge electrode 629, and the more charged particles are generated, improving the adsorption efficiency. In addition, since the second electric field also has an inclined surface, similarly, the inclined surface air inlet makes the airflow more disordered in the hollow second electric field unit 620, and the adsorption efficiency is higher. After being treated by the second electric field, the gas is discharged through 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, a part of the gas enters the third electric field through the air inlet holes on the fifth side wall 635 in the third electric field unit 630. Another part of the gas from the first electric field enters the third electric field through the holes on the fifth side wall 615 in the first electric field unit 610, and the gas from the fourth electric field enters the third electric field through the holes on the fourth side wall 634 in the third electric field unit 630. The entering directions of these gases are not perpendicular to the ion flow direction in the third electric field. Due to the staggered arrangement of the air inlet holes and the air outlet holes, the airflow is disordered in the hollow third electric field unit 630. The more the airflow passes near the discharge electrode 639, the more the particulate matter collides with the third discharge electrode 639, and the more charged particles are generated, improving the adsorption efficiency. After being treated by the third electric field, the gas is discharged through the air outlet holes on the first side wall 631, the second side wall 632, and the third side wall 633 in the third electric field unit 630 respectively.

[0207] Similarly, by analogy, the process of gas entering other electric field generating units can be deduced.

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

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

[0210] Figure 12 is Figure 11 a three-dimensional exploded schematic diagram of

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

[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 adsorbent, and the auxiliary adsorbent is arranged on at least a part of the outer surface of the side wall.

[0213] 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 adsorbent, the auxiliary adsorbent is arranged on at least a part of the outer surface of the side wall, and there is a gap between the auxiliary adsorbent and the surface of the electric field unit.

[0214] In one embodiment, the auxiliary adsorbent is composed 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 component, and a clamping member.

[0216] In one embodiment, the connecting component includes a rivet or a bolt.

[0217] In one embodiment, the electric field unit has a plurality of side walls, and both ends of the side walls have bent flanging parts. The flanging parts of two adjacent side walls in the electric field unit are connected to form a connection end. The flanging parts in the connection ends of two adjacent electric field units are aligned in sequence to form a unit connection end. Two adjacent electric field units are connected at the unit connection end, and the auxiliary adsorbent is arranged outside the unit connection end. The plurality of flanging parts and the auxiliary adsorbent in the unit connection end are connected and fixed by rivets.

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

[0219] Preferably, the cross-section of the gasket is L-shaped.

[0220] In one embodiment, as Figure 11 、 12As shown, the electric field adsorption device 1200 includes six electric field units, twelve gaskets 500, multiple rivets 99, and two auxiliary adsorption members 1220.

[0221] In one embodiment, referring to Figure 4B , Figure 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, taking the direction shown in Figure 11 as a reference, the row of side walls facing the lower part is called the first row, and the row of side walls facing the upper part is called the second row. Among them, the first row is formed by sequentially connecting the first electric field unit 810, the third electric field unit 830, and the fifth electric field unit 850 with the same size and structure through their respective side walls at the bottom, and the axes of their channels are parallel to each other and in the same plane. The second row is formed by sequentially connecting the second electric field unit 820, the fourth electric field unit 840, and the sixth electric field unit 860 with the same size and structure 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 flanging parts, and the flanging parts on the side walls at the bottom of every two adjacent 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 all provided with flanging parts.

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

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

[0225] Referring to Figure 12, at the connection D from left to right, the second folded edge portion 892 of the bottom side wall of the first electric field unit 810, the lower folded edge portion 896 of the second side wall 8122, the lower folded edge portion 898 of the fifth side wall 8223, and the first folded edge portion 891 of the bottom side wall of the third electric field unit 830 are aligned with each other and are 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 adsorbing member 1220 is disposed between the first folded edge portion 891 or the second folded edge portion 892 and the gasket.

[0226] By using rivets to rivet the folded edge portions of two adjacent electric field units and the auxiliary adsorbing member, the two adjacent electric field units and the auxiliary adsorbing member are fixedly connected. Using rivets for riveting is not only convenient for processing, but also has good sealing performance. Riveting not only makes the sealing performance good between the side walls connected to each other, 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 a cross-section of "L". At the connection D, the two gaskets 500 are respectively disposed on the first folded edge portion 891 and the second folded edge portion 892 along the axial direction of the channel. The first right-angled side (this side is parallel to the first folded edge portion 891) of the right angle clamps the auxiliary adsorbing member 1220 with the first folded edge portion 891 or the second folded edge portion 892, and the second right-angled side (this side is perpendicular to the first folded edge portion 891) clamps the auxiliary adsorbing member 1220 with the side wall at the bottom of the electric field unit.

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

[0229] In one embodiment, during assembly, the first side of the right angle of the gasket (which is parallel to the first flanging portion 891) and the first flanging portion 891 or the second flanging portion 892 clamp the auxiliary adsorbent 1220, and the second side of the right angle has a distance from the side wall at the bottom of the electric field unit. At both ends D and E, the auxiliary adsorbent 1220 is fixed to the first sides of the right angles of the two gaskets through the first flanging portion 899 and the second flanging portion 892 of the bottom side wall of the first electric field unit 810 respectively. When the auxiliary adsorbent 1220 is tightened, the second side of the right angle abuts against and closely adheres 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 part of the outer surface of the side wall 8121 and the distance between the auxiliary adsorbent 1220 and the outer surface of the side wall 8121 is less than or equal to 50 mm. The gas in this distance space will be mixed again, and the mixed gas will then pass through the electric field unit or the auxiliary adsorption mechanism for particle removal. Within a certain distance range between the auxiliary adsorbent and the electric field unit, as the distance between the auxiliary adsorbent and the electric field unit increases, the charge amount of the auxiliary adsorbent increases accordingly.

[0230] In one embodiment, the gasket is in a sheet shape. During assembly, one side of the gasket and the first flanging portion 891 or the second flanging portion 892 clamp the auxiliary adsorbent 1220, and one long side of the gasket closely adheres to the side wall surface at the bottom of the electric field unit.

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

[0232] In one embodiment, as Figure 13 shown, the inner cross-section of the clamping member 501 is in a groove shape. The clamping member 501 is sleeved on multiple flanging portions of the connection end to fix the multiple flanging portions of the connection end and the auxiliary adsorbent 1220. During assembly, the inner cross-section of the clamping member 501 matches the thickness of the flanging portion and the thickness of the auxiliary adsorbent 1220 and is in a tight fit therewith. The open end 5011 of the clamping member 501 closely adheres to the side wall surface at the bottom of the electric field unit.

[0233] In one embodiment, during assembly, the open end 5011 of the clamping member 501 has a gap with the side wall surface at the bottom of the electric field unit.

[0234] In one embodiment, the clamping member 501 can be arranged in multiple segments. Preferably, the clamping member 501 is an integral body.

[0235] In one embodiment, the elastic member 502 has an opening. The elastic member 502 is sleeved on the outside of the folded edge portion of the connection end to fix the multiple folded edge portions of the connection end and assist the suction accessory 1220, and clamps and fixes the multiple folded edge portions and the suction accessory 1220 through elasticity.

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

[0237] Preferably, the gasket can be provided in multiple segments.

[0238] Preferably, the gasket is an integral body.

[0239] In one embodiment, the gasket 5021 is in a 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 suction accessory 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, there is a gap between one long side 5022 of the gasket and the side wall surface of the bottom of the electric field unit.

[0241] In one embodiment, as Figure 15 shown, the gasket 503 is in an L shape. During assembly, the first surface of the right angle of the gasket and the first folded edge portion 891 or the second folded edge portion 892 clamp the suction accessory 1220, and the second surface 5031 of the right angle 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, there is a gap between the second surface 5031 of the right angle 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. However, it should be understood that after reading the above teachings of the present invention, those skilled in the art can 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 has a channel extending along the axial direction, and a plurality of side walls are formed around the channel. The plurality of side walls are sequentially connected by connecting members, and an air inlet hole for gas to enter the channel is provided on at least one side wall, and an air outlet hole for gas to flow out of the channel is provided on at least one side wall. Each of the side walls has a side wall main body and flanging portions respectively bent from the two ends of the side wall main body perpendicular to the two ends of the channel. The connecting member is arranged on the flanging portions of two adjacent side walls to fixedly connect the two adjacent side walls, wherein three side walls are formed around the channel and include a first side wall, a second side wall and a third side wall. The three side walls are sequentially connected to form a channel with a triangular cross-section. The first side wall has a first side wall main body and a first side wall left flanging portion and a first side wall right flanging portion respectively bent from the two ends of the first side wall main body. The second side wall has a second side wall main body and a second side wall left flanging portion and a second side wall right flanging portion respectively bent from the two ends of the second side wall main body. The third side wall has a third side wall main body and a third side wall left flanging portion and a third side wall right flanging portion respectively bent from the two ends of the third side wall main body. Among them, the first side wall left flanging portion and the first side wall right flanging portion are parallel to each other, the second side wall left flanging portion and the second side wall right flanging portion are parallel to each other, and the third side wall left flanging portion and the third side wall right flanging portion are parallel to each other and perpendicular to the third side wall main body.

2. The electric field unit according to claim 1, characterized in that, the plurality of side walls are sequentially riveted by rivets.

3. The electric field unit according to claim 1, characterized in that, the three side walls are sequentially connected to form a channel with an equilateral triangle cross-section.

4. The electric field unit according to claim 1, characterized in that, a plurality of through holes are respectively arranged on the flanging portions along the extension direction of the channel, and the connecting member passes through the through holes.

5. The electric field unit according to claim 4, characterized in that, a plurality of air inlet holes and / or a plurality of air outlet holes are uniformly distributed along the axial direction of the channel.

6. The electric field unit according to claim 4, characterized in that, the shape of the air inlet hole and / or the air outlet hole is circular, elliptical and / or polygonal, and the polygon includes any one or more of a triangle, a quadrilateral, a pentagon and a hexagon.

7. An electric field device, characterized in that, the electric field device includes a discharge electrode and an adsorption electrode. The adsorption electrode is the electric field unit according to any one of claims 1-6. 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 adsorption electrode.

8. The electric field device according to claim 7, 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.

9. The electric field device according to any one of claims 7-8, characterized in that, the channel has a regular polygon cross-section, and the discharge electrode passes through the center of the inscribed circle of the cross-section.

10. An electric field adsorption device, characterized in that, The electric field adsorption device is formed by connecting a plurality of electric field units described in any one of claims 1-6.

11. The electric field adsorption device according to claim 10, characterized in that, the plurality of electric field units are connected by a connecting member.

12. The electric field adsorption device according to claim 10, characterized in that, the plurality of electric field units are riveted by rivets.

13. The electric field adsorption device according to claim 10, characterized in that, two adjacent channels of the plurality of electric field units share a side wall.

14. An electric field device, characterized in that, it includes a discharge electrode and an adsorption electrode. The adsorption electrode is the electric field adsorption device described in any one of claims 10-13. 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.

15. The electric field device according to claim 14, characterized in that, the discharge electrode is in a slender strip shape and is made of any one of 304 stainless steel, titanium, tungsten, and iridium.

16. An electric field adsorption device, characterized in that, it includes a plurality of electric field units described in any one of claims 1-6, a plurality of connecting members, and at least one auxiliary adsorption member. The electric field unit is provided with an air inlet hole for gas to enter and / or an air outlet hole for gas to discharge. The auxiliary adsorption member has a porous structure and is arranged on at least a part of the surface of the electric field unit through the connecting member, and the at least a part is provided with the air inlet hole and / or the air outlet hole.

17. The electric field adsorption device according to claim 16, characterized in that, there is a gap between the auxiliary adsorption member and the surface of the electric field unit.

18. The electric field adsorption device according to any one of claims 16 to 17, characterized in that, the electric field unit has a channel extending axially, and a plurality of side walls are formed around the channel. The plurality of side walls are sequentially connected through 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.

19. The electric field adsorption device according to any one of claims 16 to 17, characterized in that, the connecting member is any one or a combination of an elastic member, a connecting component, and a clamping member.

20. The electric field adsorption device according to claim 19, characterized in that, the inner profile of the clamping member is in a groove shape.

21. The electric field adsorption device according to claim 19, characterized in that, the connecting component includes a rivet or a bolt.

22. The electric field adsorption device according to claim 21, characterized in that, the electric field unit has a plurality of side walls, and both ends of the side walls have bent folded edge parts. The folded edge parts of two adjacent side walls in the electric field unit are connected to form a connection end. The folded edge parts in the connection ends of two adjacent electric field units are aligned in sequence to form a unit connection end. Two adjacent electric field units are connected at the unit connection end, and the auxiliary adsorption member is arranged outside the unit connection end. The plurality of folded edge parts and the auxiliary adsorption member in the unit connection end are connected and fixed by rivets.

23. The electric field adsorption device according to claim 21, characterized in that, it further includes a gasket, and the gasket is arranged between the rivet and the auxiliary adsorption member.

24. The electric field adsorption device according to claim 23, characterized in that, the gasket is in a sheet shape.

25. The electric field adsorption device according to claim 23, characterized in that, the cross section of the gasket is in an L shape.

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