CN114072237A

CN114072237A - Electric field device and method for reducing electric field coupling

Info

Publication number: CN114072237A
Application number: CN202080039739.7A
Authority: CN
Inventors: 唐万福; 王大祥; 段志军; 邹永安; 奚勇
Original assignee: Shanghai Bixiufu Enterprise Management Co Ltd
Current assignee: Shanghai Bixiufu Enterprise Management Co Ltd
Priority date: 2019-05-27
Filing date: 2020-05-27
Publication date: 2022-02-18
Also published as: WO2020238979A1; CN113891763A; WO2020238976A1; WO2020238978A1; WO2020238975A1; CN218834819U; CN113950376A; WO2020238974A1; WO2020238980A1; CN114390949A; CN113905826A; WO2020238977A1

Abstract

The invention provides an electric field device and a method for reducing electric field coupling, comprising an electric field device inlet, an electric field device outlet, an electric field cathode and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field; the length of the electric field cathode is 30-180 mm. The invention also provides a method for reducing the electric field coupling, which comprises the step of selecting the length of the electric field cathode to ensure that the electric field coupling frequency is less than or equal to 3, so that the coupling consumption of the electric field can be reduced.

Description

Electric field device and method for reducing electric field coupling

Technical Field

The invention belongs to the technical field of electric fields, and particularly relates to an electric field device and a method for reducing electric field coupling.

Background

The electric field device generally comprises an electric field anode and an electric field cathode, wherein the electric field anode is a hollow tube, the electric field cathode is arranged in the electric field anode in a penetrating mode, two ends of the electric field anode and two ends of the electric field cathode are flush, the electric field direction is basically from the electric field cathode to the electric field anode, but the electric field structure is generally low in discharge efficiency and treatment efficiency and high in energy consumption. The existing electric field also has a coupling phenomenon that charged substances can repeatedly and circularly move between two electrodes of the electric field to form electric field coupling consumption, so that the electric field treatment efficiency is reduced and the energy consumption is increased. The existing electric field only has a charging mode, so that the low-specific-resistance substance which is easy to charge loses power quickly after being charged, and the treatment efficiency of the substance is low. When the temperature is too high, the electric field may be broken down and intermittently fail, resulting in a decrease in the processing efficiency.

Therefore, the existing electric field device has the defects of large volume, high energy consumption, low treatment efficiency and the like.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an electric field device and a method for reducing electric field coupling, which are used to solve at least one of the technical problems of large power consumption, large volume, high cost, low processing efficiency, etc. of the prior art.

To achieve the above and other related objects, the present invention provides the following examples:

1. example 1 provided by the present invention: an electric field device comprising an electric field device inlet, an electric field device outlet, an electric field cathode and an electric field anode, the electric field cathode and the electric field anode being configured to generate an ionizing electric field.

2. Example 2 provided by the invention: including example 1 above, wherein the electric field device further comprises an electric field device inlet, an electric field device outlet; the electric field anode comprises a first anode part and a second anode part, the first anode part is close to the electric field device inlet, the second anode part is close to the electric field device outlet, and at least one cathode supporting plate is arranged between the first anode part and the second anode part.

3. Example 3 provided by the present invention: including the above example 1 or 2, wherein the electric field device further includes an insulating mechanism for achieving insulation between the cathode support plate and the electric field anode.

4. Example 4 provided by the present invention: including the above example 3, wherein an electric field flow channel is formed between the electric field anode and the electric field cathode, and the insulating mechanism is disposed outside the electric field flow channel.

5. Example 5 provided by the present invention: including the above example 3 or 4, wherein the insulating mechanism includes an insulating portion and a heat insulating portion; the insulating part is made of ceramic materials or glass materials.

6. Example 6 provided by the present invention: the method includes the above example 5, wherein the insulating part is an umbrella-shaped string ceramic column, an umbrella-shaped string glass column, a column-shaped string ceramic column or a column-shaped glass column, and glaze is hung inside and outside the umbrella or inside and outside the column.

7. Example 7 provided by the present invention: the method includes example 6 above, wherein the distance between the outer edge of the umbrella-shaped string ceramic column or the umbrella-shaped string glass column and the electric field anode is more than 1.4 times the electric field distance, the sum of the distances between the umbrella protruding edges of the umbrella-shaped string ceramic column or the umbrella protruding edge of the umbrella-shaped string glass column is more than 1.4 times the insulation distance between the umbrella ceramic column or the umbrella glass column, and the total depth inside the umbrella edge of the umbrella ceramic column or the umbrella glass column is more than 1.4 times the insulation distance between the umbrella ceramic column or the umbrella glass column.

8. Example 8 provided by the invention: including any of examples 2-7 above, wherein a length of the first anode portion is 1/10-1/4, 1/4-1/3, 1/3-1/2, 1/2-2/3, 2/3-3/4, or 3/4-9/10 of the electric field anode length.

9. Example 9 provided by the present invention: including any of examples 2 to 8 above, wherein the length of the first anode portion is long enough to remove a portion of dust, reduce dust accumulation on the insulating mechanism and the cathode support plate, and reduce electrical breakdown due to dust.

10. Example 10 provided by the invention: including any of examples 1-9 above, wherein the electric field cathode comprises at least one electrode rod.

11. Example 11 provided by the present invention: including example 10 above, wherein the electrode rod has a diameter of no greater than 3 mm.

12. Example 12 provided by the present invention: including the above examples 10 or 11, wherein the electrode rod has a shape of a needle, a polygon, a burr, a screw rod, or a column.

13. Example 13 provided by the present invention: including any of examples 1-12 above, wherein the electric field anode is comprised of a hollow tube bundle.

14. Example 14 provided by the present invention: including any of the above examples 13, wherein the tube inside tangent circle diameter of the hollow tube bundle ranges from 5mm to 400 mm.

15. Example 15 provided by the present invention: including the above examples 13 or 14, wherein the cross section of the hollow of the electric field anode tube bundle adopts a circular shape or a polygonal shape.

16. Example 16 provided by the present invention: including example 15 above, wherein the polygon is a hexagon.

17. Example 17 provided by the invention: including any of examples 13-16 above, wherein the bundle of field anodes is honeycomb shaped.

18. Example 18 provided by the present invention: including any of examples 1-17 above, wherein the electric field cathode is penetrated within the electric field anode.

19. Example 19 provided by the present invention: including any one of the above examples 1 to 18, wherein the electric field device further comprises an auxiliary electric field unit for generating an auxiliary electric field that is non-parallel to the ionizing electric field.

20. Example 20 provided by the present invention: including any one of the above examples 1 to 18, wherein the electric field device further comprises an auxiliary electric field unit, the ionization electric field comprises a flow channel, and the auxiliary electric field unit is used for generating an auxiliary electric field which is not perpendicular to the flow channel.

21. Example 21 provided by the present invention: including the above-mentioned example 19 or 20, wherein the auxiliary electric field unit includes a first electrode, and the first electrode of the auxiliary electric field unit is disposed at or near an inlet of the ionization electric field.

22. Example 22 provided by the present invention: including example 21 above, wherein the first electrode is a cathode.

23. Example 23 provided by the present invention: including the above examples 21 or 22, wherein the first electrode of the auxiliary electric field unit is an extension of the electric field cathode.

24. Example 24 provided by the present invention: including any one of the above examples 21 to 23, wherein the first electrode of the auxiliary electric field unit has an angle α with the electric field anode, and 0 ° < α ≦ 125 °, or 45 ° ≦ α ≦ 125 °, or 60 ° ≦ α ≦ 100 °, or α ≦ 90 °.

25. Example 25 provided by the present invention: including any of the above examples 19 to 24, wherein the auxiliary electric field unit comprises a second electrode, the second electrode of the auxiliary electric field unit being arranged at or near an outlet of the ionizing electric field.

26. Example 26 provided by the invention: example 25 above is included, wherein the second electrode is an anode.

27. Example 27 provided by the present invention: including the above examples 25 or 26, wherein the second electrode of the auxiliary electric field unit is an extension of the electric field anode.

28. Example 28 provided by the invention: including any one of the above examples 25 to 27, wherein the second electrode of the auxiliary electric field unit has an angle α with the electric field cathode, and 0 ° < α ≦ 125 °, or 45 ° ≦ α ≦ 125 °, or 60 ° ≦ α ≦ 100 °, or α ≦ 90 °.

29. Example 29 provided by the present invention: any one of the above examples 19 to 22 is included, wherein the first electrode of the auxiliary electric field unit is provided independently of the electric field anode and the electric field cathode of the ionization electric field.

30. Example 30 provided by the present invention: including any one of the above examples 19 to 20, 25 and 26, wherein the second electrode of the auxiliary electric field unit is provided independently of the electric field anode, the electric field cathode of the ionizing electric field.

31. Example 31 provided by the present invention: including any of the above examples 1-30, wherein a ratio of a working area of the electric field anode to a discharge area of the electric field cathode is 1.667: 1-1680: 1.

32. example 32 provided by the invention: including any of the above examples 1-31, wherein a ratio of a working area of the electric field anode to a discharge area of the electric field cathode is 6.67: 1-56.67: 1.

33. example 33 provided by the present invention: including any of examples 1-32 above, wherein the electric field cathode has a diameter of 1-3mm, and the electric field anode has a polar separation from the electric field cathode of 2.5-139.9 mm; the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is 1.667: 1-1680: 1.

34. example 34 provided by the invention: including any of examples 1-33 above, wherein a polar separation of the electric field anode and the electric field cathode is less than 150 mm.

35. Example 35 provided by the invention: including any one of examples 1-34 above, wherein the inter-polar distance between the electric field anode and the electric field cathode is 2.5-139.9 mm.

36. Example 36 provided by the invention: including any one of examples 1-35 above, wherein the electric field anode is separated from the electric field cathode by a distance of 5-100 mm.

37. Example 37 provided by the present invention: including any of examples 1-36 above, wherein the electric field anode is 10-180mm in length.

38. Example 38 provided by the invention: including any of examples 1-37 above, wherein the electric field anode length is 60-180 mm.

39. Example 39 provided by the invention: including any of examples 1-36 above, wherein the electric field anode is 10-90mm in length.

40. Example 40 provided by the present invention: including any of examples 1-39 above, wherein the electric field cathode has a length of 30-180 mm.

41. Example 41 provided by the present invention: including any of examples 1-40 above, wherein the electric field cathode has a length of 54-176 mm.

42. Example 42 provided by the present invention: including any of examples 1-39 above, wherein the electric field cathode has a length of 10-90 mm.

43. Example 43 provided by the invention: including any of examples 31-41 above, wherein, when operating, the ionization field has a number of couplings ≦ 3.

44. Example 44 provided by the invention: including any of examples 19-41 above, wherein, when operating, the ionization field has a number of couplings ≦ 3.

45. Example 45 provided by the invention: including any one of the above examples 1 to 41, wherein a ratio of a working area of the electric field anode to a discharge area of the electric field cathode, a polar distance between the electric field anode and the electric field cathode, the electric field anode length, and the electric field cathode length are such that the number of coupling times of the ionizing electric field is equal to or less than 3.

46. Example 46 provided by the invention: including any one of the above examples 1 to 45, wherein the ionizing electric field voltage has a value in a range of 1kv-50 kv.

47. Example 47 provided by the invention: any one of the above examples 1 to 46 is included, wherein the electric field device comprises a plurality of electric field stages, each of the electric field stages comprising a plurality of electric field generating units, and the electric field generating units may be one or more; the electric field generating unit includes the electric field anode and the electric field cathode.

48. Example 48 provided by the invention: including example 47 above, where the electric field levels are two or more, the electric field levels are connected in series.

49. Example 49 provided by the invention: including any of the above examples 1-48, wherein the electric field device further comprises a number of connection housings through which the series electric field stages are connected.

50. Example 50 provided by the invention: including example 49 above, wherein the distance of adjacent electric field levels is more than 1.4 times the inter-pole distance between the electric field anode and the electric field cathode.

51. Example 51 provided by the present invention: including any of the above examples 1-50, wherein the electric field device further comprises a pre-electrode between the electric field device inlet and the ionizing electric field formed by the electric field anode and the electric field cathode.

52. Example 52 provided by the invention: example 51 above is included, wherein the pre-electrode is planar, mesh, apertured plate, or plate-shaped.

53. Example 53 provided by the present invention: including the above examples 51 or 52, wherein the front electrode is provided with at least one through hole.

54. Example 54 provided by the invention: including example 53 above, wherein the through-holes are polygonal, circular, elliptical, square, rectangular, trapezoidal, or diamond shaped.

55. Example 55 provided by the invention: including the above examples 53 or 54, wherein the aperture of the through-hole is 0.1 to 3 mm.

56. Example 56 provided by the invention: including any of examples 51-55 above, wherein the pre-electrode is a combination of one or more of a solid, a liquid, a gas cluster, or a plasma.

57. Example 57 provided by the invention: including any of examples 51-56 above, wherein the pre-electrode is a conductive mixed-state substance, a biological natural mixed conductive substance, or an object artificially processed to form a conductive substance.

58. Example 58 provided by the invention: including any of examples 51-57 above, wherein the pre-electrode is 304 steel or graphite.

59. Example 59 provided by the invention: including any of examples 51-57 above, wherein the pre-electrode is an ionically conductive liquid.

60. Example 60 provided by the invention: including any of examples 51-59 above, wherein the pre-electrode is perpendicular to the electric field anode.

61. Example 61 provided by the invention: including any of examples 51-60 above, wherein the pre-electrode is parallel to the electric field anode.

62. Example 62 provided by the invention: any of the above examples 51 to 61 is included, wherein the front electrode is a wire mesh.

63. Example 63 provided by the invention: including any of examples 51-62 above, wherein a voltage between the pre-electrode and the electric field anode is different from a voltage between the electric field cathode and the electric field anode.

64. Example 64 provided by the invention: including any of examples 51-63 above, wherein a voltage between the pre-electrode and the electric field anode is less than an initial corona onset voltage.

65. Example 65 provided by the invention: including any of examples 51-64 above, wherein the voltage between the pre-electrode and the electric field anode is 0.1-2 kv/mm.

66. Example 66 provided by the invention: including any of examples 51-65 above, wherein the electric field device comprises a flow channel in which the pre-electrode is located; the ratio of the cross-sectional area of the front electrode to the cross-sectional area of the flow channel is 99% -10%, or 90-10%, or 80-20%, or 70-30%, or 60-40%, or 50%.

67. Example 67 provided by the invention: a method of reducing dust removal electric field coupling, comprising the steps of:

the electric field anode parameters or/and the electric field cathode parameters are selected to reduce the number of electric field couplings.

68. Example 68 provided by the invention: example 67 is included, wherein selecting a ratio of a working area of the electric field anode to a discharge area of the electric field cathode is included.

69. Example 69 provided by the present invention: example 68 is included, wherein selecting a ratio of a working area of the electric field anode to a discharge area of the electric field cathode to be 1.667: 1-1680: 1.

70. example 70 provided by the invention: example 68 is included, wherein selecting a ratio of a working area of the electric field anode to a discharge area of the electric field cathode to be 6.67: 1-56.67: 1.

71. example 71 provided by the invention: including any one of examples 67 to 70, comprising selecting the electric field cathode to have a diameter of 1-3mm, and the electric field anode to the electric field cathode to have a polar separation of 2.5-139.9 mm; the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is 1.667: 1-1680: 1.

72. example 72 provided by the invention: including any one of examples 67 to 71, including selecting a polar separation of the electric field anode and the electric field cathode to be less than 150 mm.

73. Example 73 provided by the invention: including any one of examples 67 to 71, comprising selecting a polar separation of the electric field anode and the electric field cathode of 2.5-139.9 mm.

74. Example 74 provided by the invention: including any one of examples 67 to 71, comprising selecting a polar separation of the electric field anode and the electric field cathode of 5-100 mm.

75. Example 75 provided by the invention: including any one of examples 67 to 74, wherein including selecting the electric field anode to be 10-180mm in length.

76. Example 76 provided by the invention: including any one of examples 67 to 74, wherein including selecting the electric field anode to have a length of 60-180 mm.

77. Example 77 provided by the invention: including any one of examples 67 to 76, wherein including selecting the electric field cathode length to be 30-180 mm.

78. Example 78 provided by the invention: including any one of examples 67 to 76, wherein the electric field cathode length is selected to be 54-176 mm.

79. Example 79 provided by the invention: including any one of examples 67 to 78, wherein including selecting the electric field cathode to include at least one electrode rod.

80. Example 80 provided by the invention: examples 79 are included, including selecting the electrode rod to have a diameter of no more than 3 mm.

81. Example 81 provided by the invention: examples 79 and 80 are included, including selecting the shape of the electrode rod to be needle-like, polygonal, burred, threaded rod-like, or columnar.

82. Example 82 provided by the invention: including any one of examples 67 to 81, wherein including selecting the electric field anode to be comprised of a hollow tube bundle.

83. Example 83 provided by the invention: example 82 is included wherein the diameter of the tangent circle in the tube of the hollow tube bundle is selected to range from 5mm to 400 mm.

84. Example 84 provided by the invention: including example 83, wherein the cross-section of the void comprising the anode tube bundle is selected to be circular or polygonal.

85. Example 85 provided by the invention: examples 84 are included, including selecting the polygon to be a hexagon.

86. Example 86 provided by the invention: including any one of examples 82 to 85, wherein the tube bundle comprising the electric field anodes is selected to be honeycomb-shaped.

87. Example 87 provided by the invention: including any one of examples 67 to 86, comprising selecting the electric field cathode to penetrate within the electric field anode.

88. Example 88 provided by the invention: including any of examples 67 through 87, wherein the electric field anode and/or the electric field cathode are selected to have an electric field coupling number of times ≦ 3.

The invention has the following beneficial effects:

the electric field device provided by the invention can be applied to the technical field of gas dust removal, and can effectively remove nanoparticles in air.

Drawings

Fig. 1 is a schematic structural diagram of an electric field device in embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of an electric field generating unit in embodiments 2 to 11 and 24 to 27 of the present invention.

FIG. 3 is a view A-A of the electric field generating unit of FIG. 2 in embodiment 2, embodiment 5, and embodiment 27 of the present invention.

Fig. 4 is a view a-a of the electric field generating unit of fig. 2, marked with length and angle in examples 2 and 5 of the present invention.

Fig. 5 is a schematic structural diagram of electric field devices of two electric field levels in embodiment 2, embodiment 5, and embodiment 27 of the present invention.

Fig. 6 is a schematic structural diagram of an electric field device in embodiment 12 of the present invention.

Fig. 7 is a schematic structural diagram of an electric field device in embodiment 14 of the present invention.

Fig. 8 is a schematic structural view of an electric field device in embodiment 15 of the present invention.

Fig. 9 is a schematic structural view of an electric field device in embodiment 16 of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

In an embodiment of the present invention, an electric field device is provided, which includes an electric field device inlet, an electric field device outlet, an electric field cathode, and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field.

In an embodiment of the invention, the electric field cathode includes a plurality of cathode filaments. The diameter of the cathode filament can be 0.1mm-20mm, and the size parameters are adjusted according to application occasions and processing requirements. In one embodiment of the present invention, the diameter of the cathode filament is not greater than 3 mm. In one embodiment of the invention, the cathode wire is made of metal wire or alloy wire which is easy to discharge, is temperature resistant, can support the self weight and is stable in electrochemistry. In an embodiment of the present invention, the cathode filament is made of titanium. The specific shape of the cathode filament is adjusted according to the shape of the electric field anode, for example, if the working surface of the electric field anode is a plane, the section of the cathode filament is circular; if the working surface of the electric field anode is a circular arc surface, the cathode filament needs to be designed into a polyhedral shape. The length of the cathode filament is adjusted according to the electric field anode.

In an embodiment of the present invention, the electric field cathode includes a plurality of cathode bars. In an embodiment of the present invention, the diameter of the cathode bar is not greater than 3 mm. In one embodiment of the present invention, the cathode rod is made of a metal rod or an alloy rod which is easily discharged. The shape of the cathode rod may be needle-like, polygonal, burr-like, threaded rod-like, columnar, or the like. The shape of the cathode bar can be adjusted according to the shape of the electric field anode, for example, if the working surface of the electric field anode is a plane, the cross section of the cathode bar needs to be designed to be circular; if the working surface of the electric field anode is a circular arc surface, the cathode bar needs to be designed into a polyhedral shape.

In an embodiment of the present invention, the electric field cathode is disposed through the electric field anode.

In one embodiment of the present invention, the electric field anode comprises one or more hollow anode tubes disposed in parallel. When there are a plurality of hollow anode tubes, all the hollow anode tubes constitute a honeycomb-shaped electric field anode. In an embodiment of the present invention, the cross-section of the hollow anode tube may be circular or polygonal. In an embodiment of the invention, the cross section of the hollow anode tube is a polygon, and the polygon is a hexagon. If the cross section of the hollow anode tube is circular, a uniform electric field can be formed between the electric field anode and the electric field cathode. In an embodiment of the present invention, the diameter of the inner circle of the hollow anode tube ranges from 5mm to 400 mm.

In an embodiment of the present invention, the electric field cathode is mounted on the cathode supporting plate, and the cathode supporting plate is connected to the electric field anode through the insulating mechanism. The insulating mechanism is used for realizing the insulation between the cathode supporting plate and the electric field anode. In an embodiment of the present invention, the electric field anode includes a first anode portion and a second anode portion, i.e. the first anode portion is close to the inlet of the electric field device, and the second anode portion is close to the outlet of the electric field device. The cathode supporting plate and the insulating mechanism are arranged between the first anode part and the second anode part, namely the insulating mechanism is arranged in the middle of an ionization electric field or in the middle of an electric field cathode, so that the cathode of the electric field can be well supported, the cathode of the electric field can be fixed relative to the anode of the electric field, and a set distance is kept between the cathode of the electric field and the anode of the electric field. In the prior art, the supporting point of the cathode is at the end point of the cathode, and the distance between the cathode and the anode is difficult to maintain. In an embodiment of the present invention, the insulating mechanism is disposed outside the electric field flow channel, that is, outside the electric field flow channel, so as to prevent or reduce dust and the like in the gas from collecting on the insulating mechanism, which may cause the insulating mechanism to break down or conduct electricity.

In an embodiment of the present invention, the insulating mechanism uses a high voltage resistant ceramic insulator to insulate the electric field cathode and the electric field anode. The electric field anode is also referred to as a housing.

In an embodiment of the present invention, the insulation mechanism includes an insulation porcelain rod. In an embodiment of the invention, the length of the first anode portion accounts for 1/10-1/4, 1/4-1/3, 1/3-1/2, 1/2-2/3, 2/3-3/4, or 3/4-9/10 of the total length of the electric field anode.

In an embodiment of the invention, the second anode portion is located behind the cathode support plate and the insulating mechanism in the gas flow direction. In an embodiment of the invention, the first anode portion and the second anode portion may use different power sources.

In an embodiment of the present invention, since there is a very high potential difference between the electric field cathode and the electric field anode, in order to prevent the electric field cathode and the electric field anode from being conducted, the insulating mechanism is disposed outside the electric field flow channel between the electric field cathode and the electric field anode. Therefore, the insulating mechanism is suspended outside the electric field anode. In one embodiment of the present invention, the insulating mechanism may be made of non-conductive temperature-resistant materials, such as ceramics, glass, etc. In one embodiment of the invention, the insulation of the completely closed air-free material requires that the insulation isolation thickness is more than 0.3 mm/kv; air insulation requirements >1.4 mm/kv. The insulation distance may be set according to 1.4 times or more of the inter-polar distance between the electric field cathode and the electric field anode. In one embodiment of the invention, the insulating mechanism is made of ceramic, and the surface of the insulating mechanism is glazed; the connection can not be filled by using adhesive or organic materials, and the temperature resistance is higher than 350 ℃.

In an embodiment of the present invention, the insulating mechanism includes an insulating portion and a heat insulating portion. In order to make the insulating mechanism have the anti-pollution function, the insulating part is made of a ceramic material or a glass material. In an embodiment of the present invention, the insulating portion may be an umbrella-shaped string of ceramic posts or glass posts, and glaze is hung inside and outside the umbrella. The distance between the outer edge of the umbrella-shaped string ceramic column or the glass column and the anode of the electric field is more than or equal to 1.4 times of the distance of the electric field, namely more than or equal to 1.4 times of the pole pitch. The sum of the distances between the umbrella protruding edges of the umbrella-shaped string ceramic columns or the glass columns is more than or equal to 1.4 times of the insulation distance of the umbrella-shaped string ceramic columns. The total depth length in the umbrella edge of the umbrella-shaped string ceramic column or the glass column is more than or equal to 1.4 times of the insulation distance of the umbrella-shaped string ceramic column. The insulating part can also be a columnar ceramic column or a glass column, and glaze is hung inside and outside the column. In an embodiment of the invention, the insulating portion may also be in a tower shape.

In an embodiment of the present invention, a heating rod is disposed in the insulating portion, and when the ambient temperature of the insulating portion approaches the dew point, the heating rod is activated to perform heating. Because the inside and outside of the insulating part have temperature difference during use, condensation is easily generated inside and outside the insulating part. The outer surface of the insulation may be heated spontaneously or by gas to generate high temperature, which requires necessary insulation protection and scalding prevention. The insulating portion includes a protective containment barrier located outside of the insulating portion. In an embodiment of the invention, the tail part of the insulating part needs to be insulated from the condensation position, so that the condensation component is prevented from being heated by the environment and the heat dissipation high temperature.

In one embodiment of the invention, the outgoing line of the power supply of the electric field device is connected in a wall-crossing manner by using the umbrella-shaped string ceramic column or the glass column, the elastic contact head is used for connecting the cathode supporting plate in the wall, the sealed insulation protection wiring cap is used for plugging and pulling out the wall, and the insulation distance between the outgoing line conductor and the wall is greater than that of the umbrella-shaped string ceramic column or the glass column. In one embodiment of the invention, the high-voltage part is provided with no lead and is directly arranged on the end head, so that the safety is ensured, the high-voltage module is wholly insulated and protected by ip68, and heat exchange and heat dissipation are realized by using a medium.

In an embodiment of the invention, the electric field anode and the electric field cathode are electrically connected to two electrodes of the power supply respectively. The voltage loaded on the electric field anode and the electric field cathode needs to be selected with proper voltage levels, and the specific selection of which voltage level depends on the volume, temperature resistance, dust holding rate and the like of the electric field device. For example, the voltage is from 1kv to 50 kv; during design, temperature-resistant conditions, parameters of interpolar distance and temperature are considered firstly: 1MM is less than 30 ℃, the working area is more than 0.1 square/kilocubic meter/hour, the length of the electric field is more than 5 times of the inscribed circle of the single tube, and the flow velocity of the air flow of the electric field is controlled to be less than 9 meters/second. In one embodiment of the present invention, the electric field anode is formed of a hollow anode tube and has a honeycomb shape. The shape of the hollow anode tube port may be circular or polygonal. In one embodiment of the invention, the value range of the internal tangent circle of the hollow anode tube is 5-400mm, the corresponding voltage is 0.1-120kv, and the corresponding current of the hollow anode tube is 0.1-30A; different inscribed circles correspond to different corona voltages, approximately 1KV/1 MM.

In an embodiment of the present invention, the electric field device includes an electric field stage, and the electric field stage includes a plurality of electric field generating units, and there may be one or more electric field generating units. The electric field generating unit comprises one or more electric field anodes and one or more electric field cathodes. When the electric field level has a plurality of levels, the ionization efficiency of the electric field device can be effectively improved. In the same electric field level, the anodes of the electric fields have the same polarity, and the cathodes of the electric fields have the same polarity. And when there are a plurality of electric field stages, the electric field stages are connected in series. In an embodiment of the present invention, the electric field device further includes a plurality of connecting housings, and the series electric field stages are connected by the connecting housings; the distance between the electric field levels of two adjacent levels is more than 1.4 times of the pole pitch.

The inventor of the invention researches and discovers that the defects of poor ionization efficiency and high energy consumption of the conventional electric field device are caused by the electric field coupling phenomenon. Certain embodiments of the present invention may significantly reduce the size (i.e., volume) of an electric field device by reducing the number of electric field couplings.

The present invention achieves unexpected results as the inventors have discovered the effect of electric field coupling and have found a way to reduce the number of electric field couplings.

The scheme for reducing the coupling frequency of the electric field provided by the invention is as follows:

in one embodiment of the present invention, an asymmetric structure is adopted between the electric field cathode and the electric field anode. In the symmetrical electric field, the polar particles are subjected to an acting force with the same magnitude and opposite directions, and the polar particles reciprocate in the electric field; in an asymmetric electric field, the polar particles are subjected to two acting forces with different magnitudes, and the polar particles move towards the direction with the large acting force, so that the generation of coupling can be avoided.

In an embodiment of the present invention, an electric field apparatus is provided, which includes an electric field apparatus inlet, an electric field apparatus outlet, an electric field cathode and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field;

the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is 1.667: 1-1680: 1.

in an embodiment of the present invention, a ratio of the working area of the electric field anode to the discharge area of the electric field cathode is 6.67: 1-56.67: 1.

in an embodiment of the present invention, the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is such that the number of coupling times of the ionization electric field is less than or equal to 3.

In an embodiment of the present invention, a ratio of a working area of the electric field anode to a discharge area of the electric field cathode, a polar distance between the electric field anode and the electric field cathode, a length of the electric field anode, and a length of the electric field cathode enable a coupling frequency of the ionization electric field to be less than or equal to 3.

An ionization electric field is formed between an electric field cathode and an electric field anode of the electric field device. In order to reduce the electric field coupling of the ionizing electric field, in an embodiment of the present invention, the method for reducing the electric field coupling includes the following steps: the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is selected so that the electric field coupling frequency is less than or equal to 3. In an embodiment of the present invention, a ratio of the working area of the electric field anode to the discharge area of the electric field cathode may be: 1.667: 1-1680: 1; 3.334: 1-113.34: 1; 6.67: 1-56.67: 1; 13.34: 1-28.33: 1. in the embodiment, the working area of the electric field anode with a relatively large area and the discharge area of the electric field cathode with a relatively small area are selected, and the area ratio is specifically selected, so that the discharge area of the electric field cathode can be reduced, the suction force is reduced, the area of the electric field anode is enlarged, and the suction force is enlarged, namely, asymmetric electrode suction force is generated between the electric field cathode and the electric field anode, so that negative ions or substances with the negative ions fall into the surface of the electric field anode, the negative ions or the substances with the negative ions cannot be sucked away by the electric field cathode though the polarity is changed, the electric field coupling is reduced, and the electric field coupling frequency is less than or equal to 3. Namely, when the electric field pole distance is less than 150mm, the electric field coupling frequency is less than or equal to 3, the electric field energy consumption is low, the coupling consumption of the electric field to negative ions or substances with the negative ions can be reduced, and the electric energy of the electric field is saved by 30-50%. The working area refers to the area of the working surface of the electric field anode, for example, if the electric field anode is in a hollow regular hexagonal tubular shape, the working area is the inner surface area of the hollow regular hexagonal tubular shape. The discharge area refers to the area of the working surface of the cathode of the electric field, for example, if the cathode of the electric field is rod-shaped, the discharge area is the outer surface area of the rod. The negative ions include any negative ions or negative ion-bearing substances such as oxygen ions obtained by ionizing oxygen gas and nitrogen ions obtained by ionizing nitrogen gas.

In an embodiment of the present invention, an electric field apparatus is provided, which includes an electric field apparatus inlet, an electric field apparatus outlet, an electric field cathode and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field; the length of the electric field anode is 10-180 mm.

In an embodiment of the present invention, the length of the electric field anode is 60-180 mm.

In an embodiment of the present invention, the length of the electric field anode enables the coupling frequency of the ionization electric field to be less than or equal to 3.

In an embodiment of the present invention, an electric field apparatus is provided, which includes an electric field apparatus inlet, an electric field apparatus outlet, an electric field cathode and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field; the length of the electric field cathode is 30-180 mm.

In one embodiment of the present invention, the length of the electric field cathode is 54-176 mm.

In an embodiment of the present invention, an electric field apparatus is provided, which includes an electric field apparatus inlet, an electric field apparatus outlet, an electric field cathode and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field; the distance between the electric field anode and the electric field cathode is less than 150 mm.

In an embodiment of the present invention, the inter-polar distance between the electric field anode and the electric field cathode is 2.5-139.9 mm.

In an embodiment of the present invention, the inter-polar distance between the electric field anode and the electric field cathode is 5-100 mm.

In an embodiment of the present invention, the inter-polar distance between the electric field anode and the electric field cathode is such that the coupling frequency of the ionization electric field is less than or equal to 3.

In an embodiment of the invention, the length of the electric field anode can be 10-180mm, 10-20mm, 20-30mm, 60-180mm, 30-40mm, 40-50mm, 50-60mm, 60-70mm, 70-80mm, 80-90mm, 90-100mm, 100 + 110mm, 110 + 120mm, 120 + 130mm, 130 + 140mm, 140 + 150mm, 150 + 160mm, 160 + 170mm, 170 + 180mm, 60mm, 180mm, 10mm or 30 mm. The length of the electric field anode refers to the minimum length from one end of the working surface of the electric field anode to the other end. The length of the electric field anode is selected to effectively reduce electric field coupling.

In an embodiment of the invention, the length of the electric field anode can be 10-90mm, 15-20mm, 20-25mm, 25-30mm, 30-35mm, 35-40mm, 40-45mm, 45-50mm, 50-55mm, 55-60mm, 60-65mm, 65-70mm, 70-75mm, 75-80mm, 80-85mm or 85-90mm, and the design of the length can enable the electric field anode and the electric field device to have high temperature resistance and enable the electric field device to have high-efficiency processing capacity under high-temperature impact.

In an embodiment of the invention, the length of the electric field cathode can be 30-180mm, 54-176mm, 30-40mm, 40-50mm, 50-54mm, 54-60mm, 60-70mm, 70-80mm, 80-90mm, 90-100mm, 100-110mm, 110-120mm, 120-130mm, 130-140mm, 140-150mm, 150-160mm, 160-170mm, 170-176mm, 170-180mm, 54mm, 180mm, or 30 mm. The length of the field cathode refers to the minimum length from one end of the working surface of the field cathode to the other. The length of the electric field cathode is selected to effectively reduce electric field coupling.

In an embodiment of the invention, the length of the electric field cathode can be 10-90mm, 15-20mm, 20-25mm, 25-30mm, 30-35mm, 35-40mm, 40-45mm, 45-50mm, 50-55mm, 55-60mm, 60-65mm, 65-70mm, 70-75mm, 75-80mm, 80-85mm or 85-90mm, and the design of the length can enable the electric field cathode and the electric field device to have high temperature resistance and enable the electric field device to have high-efficiency processing capacity under high-temperature impact.

In one embodiment of the present invention, the distance between the electric field anode and the electric field cathode can be 5-30mm, 2.5-139.9mm, 9.9-139.9mm, 2.5-9.9mm, 9.9-20mm, 20-30mm, 30-40mm, 40-50mm, 50-60mm, 60-70mm, 70-80mm, 80-90mm, 90-100mm, 100-110mm, 110-120mm, 120-130mm, 130-139.9mm, 9.9mm, 139.9mm, or 2.5 mm. The distance between the electric field anode and the electric field cathode is also referred to as the pole pitch. The inter-polar distance specifically refers to the minimum vertical distance between the working surfaces of the electric field anode and the electric field cathode. The selection of the polar distance can effectively reduce the electric field coupling and enables the electric field device to have high temperature resistance.

In an embodiment of the present invention, the diameter of the electric field cathode is 1-3mm, and the inter-polar distance between the electric field anode and the electric field cathode is 2.5-139.9 mm; the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is 1.667: 1-1680: 1.

in one embodiment, the present invention provides a method for reducing electric field coupling, comprising the steps of:

passing air through an ionization electric field generated by an electric field anode and an electric field cathode;

the electric field anode or/and the electric field cathode are selected.

In an embodiment of the present invention, the size of the electric field anode and/or the electric field cathode is selected such that the number of electric field couplings is less than or equal to 3.

Specifically, the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is selected. Preferably, the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is selected to be 1.667: 1-1680: 1.

more preferably, the ratio of the working area of the electric field anode to the discharge area of the electric field cathode is selected to be 6.67-56.67: 1.

preferably, the inter-polar distance between the electric field anode and the electric field cathode is selected to be less than 150 mm.

Preferably, the distance between the electric field anode and the electric field cathode is selected to be 2.5-139.9 mm. More preferably, the pole spacing between the electric field anode and the electric field cathode is selected to be 5.0-100 mm.

Preferably, the length of the electric field anode is selected to be 10-180 mm. More preferably, the length of the electric field anode is selected to be 60-180 mm.

Preferably, the length of the electric field cathode is selected to be 30-180 mm. More preferably, the length of the electric field cathode is selected to be 54-176 mm.

In an embodiment of the invention, the electric field device further includes an auxiliary electric field unit for generating an auxiliary electric field that is not parallel to the ionization electric field.

In an embodiment of the invention, the electric field device further includes an auxiliary electric field unit, the ionization electric field includes a flow channel, and the auxiliary electric field unit is configured to generate an auxiliary electric field that is not perpendicular to the flow channel.

In an embodiment of the invention, the auxiliary electric field unit includes a first electrode, and the first electrode of the auxiliary electric field unit is disposed at or near an inlet of the ionization electric field.

In an embodiment of the invention, the first electrode is a cathode.

In an embodiment of the invention, the first electrode of the auxiliary electric field unit is an extension of the electric field cathode.

In an embodiment of the present invention, the first electrode of the auxiliary electric field unit has an included angle α with the electric field anode, and 0 ° < α ≦ 125 °, or 45 ° ≦ α ≦ 125 °, or 60 ° ≦ α ≦ 100 °, or α ≦ 90 °.

In an embodiment of the invention, the auxiliary electric field unit includes a second electrode, and the second electrode of the auxiliary electric field unit is disposed at or near the outlet of the ionization electric field.

In an embodiment of the invention, the second electrode is an anode.

In an embodiment of the invention, the second electrode of the auxiliary electric field unit is an extension of the electric field anode.

In one embodiment of the present invention, the second electrode of the auxiliary electric field unit has an angle α with the electric field cathode, and 0 ° < α ≦ 125 °, or 45 ° ≦ α ≦ 125 °, or 60 ° ≦ α ≦ 100 °, or α ≦ 90 °.

In an embodiment of the invention, the electrodes of the auxiliary electric field and the electrodes of the ionization electric field are independently disposed.

The ionizing electric field between the electric field anode and the electric field cathode is also referred to as the first electric field. In an embodiment of the invention, a second electric field not parallel to the first electric field is formed between the electric field anode and the electric field cathode. In another embodiment of the present invention, the flow channel of the second electric field and the ionization electric field is not perpendicular. The second electric field, also called auxiliary electric field, can be formed by one or two auxiliary electrodes, which can be placed at the entrance or exit of the ionizing electric field when the second electric field is formed by one auxiliary electrode, which can be charged at a negative potential, or at a positive potential. Wherein, when the auxiliary electrode is a cathode, it is arranged at or near the inlet of the ionization electric field; the auxiliary electrode and the electric field anode form an included angle alpha, and the alpha is more than 0 degrees and less than or equal to 125 degrees, or more than or equal to 45 degrees and less than or equal to 125 degrees, or more than or equal to 60 degrees and less than or equal to 100 degrees, or more than or equal to 90 degrees. When the auxiliary electrode is an anode, the auxiliary electrode is arranged at or close to an outlet of the ionization electric field; the auxiliary electrode and the electric field cathode form an included angle alpha, and the alpha is more than 0 degrees and less than or equal to 125 degrees, or more than or equal to 45 degrees and less than or equal to 125 degrees, or more than or equal to 60 degrees and less than or equal to 100 degrees, or more than or equal to 90 degrees. When the second electric field is formed by two auxiliary electrodes, one of the auxiliary electrodes may be charged with a negative potential and the other auxiliary electrode may be charged with a positive potential; one auxiliary electrode may be placed at the entrance of the ionizing electric field and the other auxiliary electrode at the exit of the ionizing electric field. In addition, the auxiliary electrode may be a part of the electric field cathode or the electric field anode, that is, the auxiliary electrode may be formed by an extension of the electric field cathode or the electric field anode, in which case the lengths of the electric field cathode and the electric field anode are different. The auxiliary electrode may also be a single electrode, i.e. the auxiliary electrode may not be part of the electric field cathode or the electric field anode, in which case the voltage of the second electric field is different from the voltage of the first electric field and may be controlled individually according to the operating conditions. The auxiliary electrode comprises a first electrode and/or a second electrode in the auxiliary electric field unit.

In one embodiment of the present invention, the electric field device includes a pre-electrode between the electric field device inlet and the ionizing electric field formed by the electric field anode and the electric field cathode. When gas flows through the pre-electrode from the inlet of the electric field device, particles and the like in the gas are charged.

In an embodiment of the present invention, the shape of the front electrode may be a surface shape, a mesh shape, a perforated plate shape, a needle bar shape, a ball cage shape, a box shape, a tube shape, a natural material shape, or a processed material shape. The mesh in the present invention is a shape including any porous structure. When the front electrode is in a plate shape, a ball cage shape, a box shape or a tubular shape, the front electrode can be a non-porous structure or a porous structure. When the front electrode is in a porous structure, one or more through holes are formed in the front electrode. In an embodiment of the present invention, the shape of the through hole may be polygonal, circular, elliptical, square, rectangular, trapezoidal, or rhombic. In one embodiment of the present invention, the size of the through hole may be 0.1-3mm, 0.1-0.2mm, 0.2-0.5mm, 0.5-1mm, 1-1.2mm, 1.2-1.5mm, 1.5-2mm, 2-2.5mm, 2.5-2.8mm, or 2.8-3 mm.

In an embodiment of the present invention, the form of the front electrode may be one or a combination of solid, liquid, gas molecular group, plasma, conductive mixed-state substance, natural mixed conductive substance of organism, or artificial processing of object to form conductive substance. When the front electrode is solid, a solid metal, such as 304 steel, or other solid conductor, such as graphite, may be used. When the front electrode is a liquid, it can be an ion-containing conductive liquid.

In one embodiment of the present invention, the front electrode is perpendicular to the electric field anode. In one embodiment of the present invention, the pre-electrode is parallel to the electric field anode. In an embodiment of the present invention, the front electrode is a wire mesh. In one embodiment of the present invention, the voltage between the pre-electrode and the electric field anode is different from the voltage between the electric field cathode and the electric field anode. In an embodiment of the present invention, the voltage between the pre-electrode and the electric field anode is less than the initial corona onset voltage. The initial corona onset voltage is the minimum of the voltage between the electric field cathode and the electric field anode. In one embodiment of the present invention, the voltage between the pre-electrode and the electric field anode may be 0.1-2 kv/mm.

In an embodiment of the present invention, the electric field device includes a flow channel, and the pre-electrode is located in the flow channel. In an embodiment of the present invention, a ratio of a cross-sectional area of the front electrode to a cross-sectional area of the flow channel is 99% to 10%, or 90% to 10%, or 80% to 20%, or 70% to 30%, or 60% to 40%, or 50%. The cross-sectional area of the pre-electrode is the sum of the areas of the pre-electrode along the solid part of the cross-section. In one embodiment of the present invention, the pre-electrode is charged with a negative potential.

The electric field device provided by the invention can be applied to the technical field of gas dust removal, such as an electrostatic dust removal device, and can also be used as any device needing an electric field to participate, such as a plasma generator (fluorescent lamp), an ozone generator and the like.

The following description will be made by taking an electric field device provided by the present invention as an example of an electrostatic dust removing device, which has the same structure as the electric field device:

at present, an electric field device is also used for dedusting and purifying particles contained in dust-containing gas, and the basic principle is that plasma is generated by high-voltage discharge to charge the particles, and then the charged particles are adsorbed on a dust collecting electrode to realize electric field dedusting. But the prior electrostatic dust removal device has the problems of large occupied space, high energy consumption, low treatment efficiency and the like,

the electric field device provided by the invention has the advantages of small volume and low energy consumption, can be applied to the technical field of gas dust removal, and can effectively remove particles in gas in certain embodiments.

In an embodiment of the present invention, the electric field device may include an electric field cathode and an electric field anode, and an ionization electric field is formed between the electric field cathode and the electric field anode. Gas enters an ionization electric field, oxygen in the gas is ionized, a large number of oxygen ions with charges are formed, the oxygen ions are combined with particles such as dust in the gas, the particles are charged, the electric field anode exerts adsorption force on the particles with the negative charges, and the particles are adsorbed on the electric field anode to remove the particles in the gas.

In one embodiment of the present invention, the electric field anode may comprise one or more hollow anode tubes arranged in parallel. When there are a plurality of hollow anode tubes, all the hollow anode tubes constitute a honeycomb-shaped electric field anode. In an embodiment of the present invention, the cross-section of the hollow anode tube may be circular or polygonal. If the cross section of the hollow anode tube is circular, an even electric field can be formed between the electric field anode and the electric field cathode, and dust is not easy to accumulate on the inner wall of the hollow anode tube. If the cross section of the hollow anode tube is triangular, 3 dust accumulation surfaces can be formed on the inner wall of the hollow anode tube, 3 far-angle dust containing angles are formed, and the dust containing rate of the hollow anode tube with the structure is highest. If the cross section of the hollow anode tube is quadrilateral, 4 dust accumulation surfaces and 4 dust containing corners can be obtained, but the splicing structure is unstable. If the cross section of the hollow anode tube is hexagonal, 6 dust accumulation surfaces and 6 dust containing angles can be formed, and the dust accumulation surfaces and the dust containing rate are balanced. If the cross section of the hollow anode tube is polygonal, more dust-collecting edges can be obtained, but the dust holding rate is lost.

In an embodiment of the present invention, the insulating mechanism is disposed outside the electric field flow channel, that is, outside the electric field flow channel, so as to prevent or reduce dust and the like in the gas from collecting on the insulating mechanism, which may cause the insulating mechanism to break down or conduct electricity.

In an embodiment of the invention, the first anode part is positioned in front of the cathode support plate and the insulating mechanism in the gas flowing direction, and the first anode part can remove water in the gas and prevent the water from entering the insulating mechanism to cause short circuit and ignition of the insulating mechanism. In addition, the first anode part can remove a considerable part of dust in the gas, and when the gas passes through the insulating mechanism, the considerable part of dust is eliminated, so that the possibility of short circuit of the insulating mechanism caused by the dust is reduced. In an embodiment of the present invention, the insulation mechanism includes an insulation porcelain rod. The design of first anode portion is mainly in order to protect insulating knob insulator not by pollution such as particulate matter in the gas, in case gas pollution insulating knob insulator will cause electric field positive pole and electric field negative pole to switch on to make the laying dust function of electric field positive pole invalid, so the design of first anode portion can effectively reduce insulating knob insulator and be polluted, improves the live time of product. In the process that gas flows through the electric field flow channel, the first anode part and the electric field cathode contact polluted gas firstly, and the insulating mechanism contacts the gas later, so that the purpose of removing dust firstly and then passing through the insulating mechanism is achieved, the pollution to the insulating mechanism is reduced, the cleaning and maintenance period is prolonged, and the corresponding electrode is supported in an insulating way after being used. The length of the first anode portion is sufficiently long to remove a portion of dust, reduce dust accumulation on the insulating mechanism and the cathode support plate, and reduce electrical breakdown caused by dust.

The existing industrial electrostatic dust collection electric field consists of dust collection electrodes and discharge electrodes, wherein each electrode of the electric field consists of polar plates which are arranged in parallel and have anisotropic adsorption force on charged dust. However, the positive electrode attracts the negative electrode when the charge is negative, and the negative electrode attracts the negative electrode when the charge is positive. After adsorption, the charge property is reversed and tends to be the same as that of the polar plate, namely dust on the positive plate tends to the negative electrode again and dust on the negative plate tends to the positive electrode again, and the movement and force are repeatedly and endlessly generated to form electric field coupling consumption. Electric field coupling consumption causes the efficiency of particles, liquid fog and the like with weak electrostatic adsorption adhesion to slide down or fail. Thereby the dust collection efficiency is low and the energy consumption is high.

The inventor of the invention researches and discovers that the defects of poor removal efficiency and high energy consumption of the existing electric field device are caused by electric field coupling. The invention can obviously reduce the size (namely the volume) of the electric field dust removal device by reducing the coupling times of the electric field. For example, when the electric field device provided by the invention is applied to electrostatic dust removal, the size of the electric field dust removal device provided by the invention is about one fifth of that of the existing ionization dust removal device. The reason is that the gas flow rate is set to be about 1m/s in the conventional electric field dust removing device in order to obtain an acceptable particle removal rate, but the invention can still obtain a higher particle removal rate under the condition that the gas flow rate is increased to 6 m/s. When a given flow of gas is treated, the size of the electric field dust collector can be reduced as the gas velocity is increased.

In addition, the invention can obviously improve the particle removal efficiency. For example, the prior art electric field dust removing device can remove about 70% of the particulate matter in the engine exhaust gas at a gas flow rate of about 1m/s, but the present invention can remove about 99% of the particulate matter even at a gas flow rate of 6 m/s.

The present invention achieves the above-noted unexpected results as the inventors have discovered the effect of electric field coupling and have found a way to reduce the number of electric field couplings.

Generally, the dust removal efficiency of the electrostatic dust collection electric field is low, and the energy consumption is high. In order to solve the problems of low dust removal efficiency and the like, the dust collection electric field in the prior art is usually selected to be connected in series in multiple sections so as to improve the integral dust collection efficiency. The multi-electric field series connection mode can lead to larger overall occupied space of the dust collecting device, higher energy consumption and lower dust removal efficiency of the single electric field.

In an embodiment of the invention, the electric field device includes an auxiliary electric field non-parallel to the electric field anode and the electric field cathode.

In an embodiment of the invention, the electric field device further includes an auxiliary electric field, the ionization electric field includes a flow channel, and the auxiliary electric field is not perpendicular to the flow channel.

In one embodiment of the present invention, the auxiliary electric field applies a backward force to the negatively charged oxygen ion stream between the electric field anode and the electric field cathode, so that the negatively charged oxygen ion stream between the electric field anode and the electric field cathode has a backward moving velocity. When the gas containing the substances to be treated flows into the flow channel of the ionization electric field from front to back, the oxygen ions with negative charges are combined with the substances to be treated in the process of moving towards the anode of the electric field and moving backwards, and because the oxygen ions have backward moving speed, the oxygen ions are combined with the substances to be treated, strong collision cannot be generated between the oxygen ions and the substances to be treated, so that the larger energy consumption caused by the strong collision is avoided, the oxygen ions are easily combined with the substances to be treated, the charge efficiency of the substances to be treated in the gas is higher, further, under the action of the anode of the electric field, more substances to be treated can be collected, and the dust removal efficiency of the electric field device provided by the invention is higher.

In the application of the electric field, the phenomena that the dust is not sufficiently charged due to low oxygen content, and the dust is a substance easy to conduct electricity and easily loses electrons after being charged are often encountered. These phenomena directly lead to failure of electric field dust collection. To avoid this, it is widely believed that the dedusting field cannot be applied to oxygen-lean exhaust and to low-resistance dust that cannot be successfully charged. For example, the oxygen content in automobile exhaust exhausted by oxygen is very low, the minimum is only 0.3%, oxygen ions cannot be generated due to almost no oxygen and ionization, electrons cannot be transferred, and dust cannot be charged. In addition, for water mist and metal dust, the water mist and the metal dust are easy to be charged and lose power, so that the water mist and the metal dust are quickly failed after being ionized by oxygen, and the dust cannot be collected by an electric field. In addition, the electrostatic dust collection electric field in the prior art has low collection efficiency of substances to be treated such as dust.

In an embodiment of the present invention, one or more through holes are formed in the pre-electrode, and when the gas passes through the through holes of the pre-electrode, the particles in the gas are charged. When the gas with the particles passes through the through holes on the front electrode, the gas with the particles passes through the front electrode, so that the contact area between the gas with the particles and the front electrode is increased, and the charging efficiency is increased. The through hole in the pre-electrode of the present invention is any hole that allows a substance to flow through the pre-electrode.

In one embodiment of the present invention, during operation, the pre-electrode charges the particles in the gas before the gas with the contaminants enters the ionization electric field formed by the electric field anode and the electric field cathode, and the gas with the particles passes through the pre-electrode. When the gas with the particles enters the ionization electric field, the electric field anode exerts attraction on the charged particles, so that the charged particles move towards the electric field anode until the charged particles are attached to the electric field anode.

In one embodiment of the present invention, the pre-electrode introduces electrons into the particles in the gas, and the electrons are transferred between the pre-electrode and the electric field anode to charge more particles in the gas.

In one embodiment of the present invention, electrons are conducted between the pre-electrode and the electric field anode through the charged particles, and an electric current is formed.

In one embodiment of the present invention, the pre-electrode charges the particles in the gas by contacting the particles in the gas. In one embodiment of the present invention, the pre-electrode transfers electrons to the particles in the gas by contacting the particles in the gas, and charges the particles in the gas.

The gas temperature of the electrostatic field is 200 ℃, and the electric field breakdown, especially the miniaturized high-efficiency electric field, can be triggered when the temperature of the electrostatic field exceeds 200 ℃, and the electric field temperature of the honeycomb tube bundle with the electric field length of 400mm and the drift diameter of 300 mm is 90 ℃. At the temperature below 90 ℃, the dust collecting efficiency of the electric field reaches 99 percent, but when the temperature rises to 120 ℃, the electric field can be punctured and intermittently fails, so that the dust collecting efficiency is obviously reduced to below 50 percent. The prior art generally solves the problem of high temperature resistance of an electric field by increasing the inter-polar distance between an electric field anode and an electric field cathode, increasing the lengths of the electric field anode and the electric field cathode and preventing electric field breakdown, and the invention provides the method for reducing the lengths of the electric field anode and the electric field cathode, namely shortening the lengths of the electric field anode and the electric field cathode: the length of the electric field anode is 1-9cm, the length of the electric field cathode is 1-9cm, the problem of high temperature resistance of an electric field generating unit and an electric field device is solved, obviously, opposite technical inspiration is given by the prior art, the invention overcomes the technical bias (the distance between the electric field anode and the electric field cathode is increased, and the length of the electric field anode and the electric field cathode is increased), and the technical means abandoned by people due to the technical bias is adopted, so that the technical problem to be solved by the invention is solved.

Further, the present invention proposes to reduce the length of the electric field anode and the electric field cathode, i.e. to shorten the length of the electric field anode and the electric field cathode: the length of the electric field anode is 1-9cm, the length of the electric field cathode is 1-9cm, when smoke dust enters at 200 ℃, the residence time is short, the active molecules are connected in series less, the breakdown current cannot be formed, meanwhile, the deformation of interelectrode short circuit caused by electric field thermal deformation is reduced due to short, breakdown is not easy to cause, the enduring temperature of an electric field device can reach 500 ℃ or even more than 500 ℃, and the dust collection efficiency is high and reaches 50 percent, namely, the electric field generating unit and the electric field device have high enduring temperature and high dust collection efficiency, compared with the prior art, the technical effect of the invention generates the change of 'quantity', for technicians in the field, the invention can not predict or reason in advance, the invention obtains unexpected technical effect, when the invention generates unexpected technical effect, on one hand, the invention has remarkable progress, meanwhile, the technical scheme of the invention is also reflected to be non-obvious.

In some embodiments of the invention, when the temperature of the electric field is 200 ℃, the corresponding dust collection efficiency is 99.9%; when the temperature of the electric field is 400 ℃, the corresponding dust collection efficiency is 90 percent; when the temperature of the electric field is 500 ℃, the corresponding dust collecting efficiency is 50%.

The electric field device and the method for reducing coupling according to the invention are further illustrated by the following specific examples.

Example 1

Fig. 1 is a schematic structural diagram of an electric field device in the present embodiment. The electric field device comprises an electric field device inlet 1011, a front electrode 1013 and an insulating mechanism 1015.

The electric field device includes an electric field anode 10141 and an electric field cathode 10142 disposed within the electric field anode 10141, with an electric field formed between the electric field anode 10141 and the electric field cathode 10142. The front electrode 1013 is disposed at the electric field device inlet 1011, and the front electrode 1013 is a conductive mesh plate.

Specifically, the electric field anode 10141 is composed of a honeycomb-shaped and hollow anode tube bundle group, and the shape of the end opening of the anode tube bundle is hexagonal.

The electric field cathode 10142 includes a plurality of electrode rods, which penetrate through each anode tube bundle in the anode tube bundle group in a one-to-one correspondence manner, wherein the electrode rods are in a needle shape, a polygonal shape, a burr shape, a threaded rod shape or a columnar shape. The ratio of the working area of the electric field anode 10141 to the discharge area of the electric field cathode 10142 is 1680: 1, the distance between the electric field anode 10141 and the electric field cathode 10142 is 9.9mm, the length of the electric field anode 10141 is 60mm, and the length of the electric field cathode 10142 is 54 mm.

In this embodiment, the gas outlet end of the electric field cathode 10142 is lower than the gas outlet end of the electric field anode 10141, the gas inlet end of the electric field cathode 10142 is flush with the gas inlet end of the electric field anode 10141, an included angle α is formed between the outlet end of the electric field anode 10141 and the near outlet end of the electric field cathode 10142, and α is equal to 90 °.

As shown in fig. 1, in an embodiment of the present invention, the electric field cathode 10142 is mounted on a cathode support plate 10143, and the cathode support plate 10143 and the electric field anode 10141 are connected through an insulating mechanism 1015. The insulating means 1015 is used for realizing the insulation between the cathode support plate 10143 and the electric field anode 10141. In one embodiment of the present invention, the field anode 10141 includes a first anode portion 101412 and a second anode portion 101411, i.e., the first anode portion 101412 is near the field device inlet and the second anode portion 101411 is near the field device outlet. The cathode support plate and the insulating mechanism are arranged between the first anode portion 101412 and the second anode portion 101411, that is, the insulating mechanism 1015 is arranged between the ionization electric field and the electric field cathode 10142, which can well support the electric field cathode 10142 and fix the electric field cathode 10142 relative to the electric field anode 10141, so that a set distance is maintained between the electric field cathode 10142 and the electric field anode 10141.

The insulating mechanism 1015 includes an insulating portion and a heat insulating portion. The insulating part is made of ceramic materials or glass materials. The insulating part is an umbrella-shaped ceramic column or glass column string, or a columnar ceramic column or glass column string, and glaze is hung inside and outside the umbrella or inside and outside the column.

Example 2

The electric field generating unit in this embodiment can be applied to the electric field device of the present invention, the structure schematic diagram of the electric field generating unit in this embodiment is shown in fig. 2, the a-a view of the electric field generating unit in this embodiment is shown in fig. 3, and the a-a view of the electric field generating unit with the length and angle marked in the electric field generating unit in this embodiment is shown in fig. 4.

As shown in fig. 2, the device comprises an electric field anode 4051 and an electric field cathode 4052 for generating an electric field, wherein the electric field anode 4051 and the electric field cathode 4052 are respectively electrically connected to two electrodes of a power supply, the power supply is a dc power supply, and the electric field anode 4051 and the electric field cathode 4052 are respectively electrically connected to an anode and a cathode of the dc power supply. In this embodiment the electric field anode 4051 has a positive potential and the electric field cathode 4052 has a negative potential.

The dc power supply in this embodiment may be a dc high voltage power supply. The above-mentioned electric field anode 4051 and electric field cathode 4052 form a discharge electric field therebetween, which is an electrostatic field.

As shown in fig. 2, 3 and 4, in the present embodiment, the electric field anode 4051 has a hollow regular hexagonal tubular shape, the electric field cathode 4052 has a rod shape, and the electric field cathode 4052 is inserted into the electric field anode 4051.

The present embodiment further provides a method for reducing electric field coupling, including the following steps: the ratio of the working area of the field anode 4051 to the discharge area of the field cathode 4052 was selected to be 6.67: 1, the inter-polar distance L3 between the electric field anode 4051 and the electric field cathode 4052 is 9.9mm, the length L1 of the electric field anode 4051 is 60mm, the length L2 of the electric field cathode 4052 is 54mm, the electric field anode 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the electric field cathode 4052 is disposed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near-inlet end of the electric field cathode 4052, an included angle α is formed between the outlet end of the electric field anode 4051 and the near-outlet end of the electric field cathode 4052, and α is 118 °, so that under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is realized to be less than or equal to 3, the coupling consumption of the electric field can be reduced, and the electric field power is saved by 30-50%.

The electric field device in the embodiment comprises a plurality of electric field stages formed by a plurality of electric field generating units, and the electric field stages are arranged in plurality so as to effectively improve the processing efficiency of the electric field device by utilizing the plurality of electric field generating units. In the same electric field level, the anodes of the electric fields have the same polarity, and the cathodes of the electric fields have the same polarity.

The electric field stages in the plurality of electric field stages are connected in series, the electric field stages in series are connected through the connecting shell, and the distance between the electric field stages of two adjacent stages is larger than 1.4 times of the inter-pole distance. Referring to fig. 5, the electric field device of the two electric field stages in this embodiment is schematically shown, and as shown in fig. 5, the electric field stages are two stages, i.e., a first electric field 4053 and a second electric field 4054, and the first electric field 4053 and the second electric field 4054 are connected in series by a connecting housing 4055.

The embodiment adopts the existing method for detecting the coupling frequency of the electric field, and specifically comprises the following steps:

introducing water mist with red mark into electric field, wherein the concentration of the water mist is 200 mg/m³Velocity of wind<1.5m/s, returning once from the cathode of the electric field to the anode of the electric field and then to the cathode of the electric field, recording as one-time coupling, and visually observing the returning times of the water mist, namely the coupling times.

The electric field device provided by the embodiment can be used for removing particles in air, more particles can be collected under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is less than or equal to 3, the coupling consumption of the electric field to aerosol, water mist, oil mist and loose and smooth particles in air can be reduced, and the electric energy of the electric field is saved by 30-50%. In the embodiment, the dust removal efficiency of the electric field device is effectively improved by utilizing the plurality of electric field generating units.

Example 3

The electric field generating unit in this embodiment can be applied to the electric field apparatus of the present invention, as shown in fig. 2, and includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field, where the electric field anode 4051 and the electric field cathode 4052 are respectively electrically connected to two electrodes of a power supply, the power supply is a dc power supply, and the electric field anode 4051 and the electric field cathode 4052 are respectively electrically connected to an anode and a cathode of the dc power supply. In this embodiment the electric field anode 4051 has a positive potential and the electric field cathode 4052 has a negative potential.

In this embodiment, the electric field anode 4051 has a hollow regular hexagonal tube shape, the electric field cathode 4052 has a rod shape, and the electric field cathode 4052 is inserted into the electric field anode 4051.

The present embodiment further provides a method for reducing electric field coupling, including the following steps: the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is selected to be 1680: 1, the inter-polar distance between the electric field anode 4051 and the electric field cathode 4052 is 139.9mm, the length of the electric field anode 4051 is 180mm, the length of the electric field cathode 4052 is 180mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is arranged in the fluid channel, the electric field cathode 4052 extends along the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is less than or equal to 3, the electric field coupling consumption can be reduced, and the electric field electric energy is saved by 20-40%.

The electric field device provided by the embodiment can be used for removing particles in air, more particles can be collected under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is less than or equal to 3, the coupling consumption of the electric field on aerosol, water mist, oil mist and loose and smooth particles in air can be reduced, and the electric energy of the electric field is saved by 20-40%.

Example 4

The present embodiment further provides a method for reducing electric field coupling, including the following steps: the ratio of the working area of field anode 4051 to the discharge area of field cathode 4052 was chosen to be 1.667: 1, the inter-polar distance between the electric field anode 4051 and the electric field cathode 4052 is 2.4mm, the length of the electric field anode 4051 is 30mm, the length of the electric field cathode 4052 is 30mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is arranged in the fluid channel, the electric field cathode 4052 extends along the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near-inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near-outlet end of the electric field cathode 4052, and then under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is less than or equal to 3, the electric field coupling consumption can be reduced, and the electric field electric energy is saved by 10-30%.

The electric field device provided by the embodiment can be used for removing particles in air, more particles can be collected under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is less than or equal to 3, the coupling consumption of the electric field to aerosol, water mist, oil mist and loose and smooth particles in air can be reduced, and the electric energy of the electric field is saved by 10-30%.

Example 5

The electric field generating unit in this embodiment can be applied to the electric field device in the electric field dust removing system of the semiconductor manufacturing clean room system, as shown in fig. 2, and includes an electric field anode 4051 and an electric field cathode 4052 for generating an electric field, where the electric field anode 4051 and the electric field cathode 4052 are respectively electrically connected to two electrodes of a power supply, the power supply is a dc power supply, and the electric field anode 4051 and the electric field cathode 4052 are respectively electrically connected to an anode and a cathode of the dc power supply. In this embodiment the electric field anode 4051 has a positive potential and the electric field cathode 4052 has a negative potential.

As shown in fig. 2, 3 and 4, in the present embodiment, the electric field anode 4051 has a hollow regular hexagonal tubular shape, the electric field cathode 4052 has a rod shape, the electric field cathode 4052 is inserted into the electric field anode 4051, and the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is 6.67: 1, the inter-polar distance L3 between the electric field anode 4051 and the electric field cathode 4052 is 9.9mm, the length L1 of the electric field anode 4051 is 60mm, the length L2 of the electric field cathode 4052 is 54mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is disposed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near-inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 and the near-outlet end of the electric field cathode 4052 form an included angle α, and α is 118 °.

The electric field device in the embodiment comprises a plurality of electric field stages formed by the electric field generating units, and the electric field stages are arranged in plurality, so that the dust collecting efficiency of the electric field device is effectively improved by utilizing a plurality of dust collecting units. In the same electric field level, the anodes of the electric fields have the same polarity, and the cathodes of the electric fields have the same polarity.

The electric field stages in the plurality of electric field stages are connected in series, the electric field stages in series are connected through the connecting shell, and the distance between the electric field stages of two adjacent stages is larger than 1.4 times of the inter-pole distance. As shown in fig. 5, the electric field levels are two stages, a first stage electric field 4053 and a second stage electric field 4054, and the first stage electric field 4053 and the second stage electric field 4054 are connected in series by a connecting housing 4055.

The electric field device that this embodiment provided can be used to the particulate matter in the desorption air, under the effect of electric field anode 4051 and electric field cathode 4052, can collect more pending material, guarantees that this electric field generating element's collection dust efficiency is higher, and typical granule pm0.23 collection dust efficiency is more than 99.99%.

Example 6

In this embodiment, the electric field anode 4051 is in the shape of a hollow regular hexagon tube, the electric field cathode 4052 is in the shape of a rod, the electric field cathode 4052 is inserted into the electric field anode 4051, and the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is 1680: 1, the inter-polar distance between the electric field anode 4051 and the electric field cathode 4052 is 139.9mm, the length of the electric field anode 4051 is 180mm, the length of the electric field cathode 4052 is 180mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is disposed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near-inlet end of the electric field cathode 4052, and the outlet end of the electric field anode 4051 is flush with the near-outlet end of the electric field cathode 4052.

The electric field device in the embodiment comprises a plurality of electric field stages formed by the electric field generating units, and the electric field stages are arranged in plurality so as to effectively improve the dust collecting efficiency of the electric field device by utilizing the electric field generating units. In the same electric field level, the anodes of the electric fields have the same polarity, and the cathodes of the electric fields have the same polarity.

Example 7

In this embodiment, the field anode 4051 has a hollow regular hexagonal tube shape, the field cathode 4052 has a rod shape, the field cathode 4052 is inserted into the field anode 4051, and the ratio of the working area of the field anode 4051 to the discharge area of the field cathode 4052 is 1.667: 1, the distance between the poles of the electric field anode 4051 and the electric field cathode 4052 is 2.4 mm. The electric field anode 4051 is 30mm in length, the electric field cathode 4052 is 30mm in length, the electric field anode 4051 comprises a fluid channel comprising an inlet end and an outlet end, the electric field cathode 4052 is disposed in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the proximal inlet end of the electric field cathode 4052, and the outlet end of the electric field anode 4051 is flush with the proximal outlet end of the electric field cathode 4052.

In this embodiment, the electric field anode 4051 and the electric field cathode 4052 constitute a plurality of electric field generating units, so that the dust collecting efficiency of the electric field apparatus can be effectively improved by using the plurality of electric field generating units.

Example 8

A method of reducing electric field coupling comprising the steps of: the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is selected to be 27.566:1, the inter-polar distance between the electric field anode 4051 and the electric field cathode 4052 is 2.3mm, the length of the electric field anode 4051 is 5mm, the length of the electric field cathode 4052 is 4mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is arranged in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near-inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near-outlet end of the electric field cathode 4052, and further under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is not more than 3, and the electric field coupling consumption can be reduced.

The electric field device that this embodiment provided can be used to the particulate matter in the desorption air, under the effect of electric field anode 4051 and electric field cathode 4052, can collect more pending material, guarantees that this electric field generating unit's collection dust efficiency is higher.

Example 9

A method of reducing electric field coupling comprising the steps of: the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is selected to be 1.108:1, the inter-pole distance between the electric field anode 4051 and the electric field cathode 4052 is 2.3mm, the length of the electric field anode 051 is 60mm, the length of the electric field cathode 4052 is 200mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is arranged in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near-inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near-outlet end of the electric field cathode 4052, and further under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is not more than 3, and the coupling consumption of the electric field can be reduced.

Example 10

A method of reducing electric field coupling comprising the steps of: the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 is selected as 3065: 1, the inter-polar distance between the electric field anode 4051 and the electric field cathode 4052 is 249mm, the length of the electric field anode 4051 is 2000mm, the length of the electric field cathode 4052 is 180mm, the electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the electric field cathode 4052 is arranged in the fluid channel, the electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the electric field anode 4051 is flush with the near inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 is flush with the near outlet end of the electric field cathode 4052, and then under the action of the electric field anode 4051 and the electric field cathode 4052, the electric field coupling frequency is less than or equal to 3.

Example 11

A method of reducing electric field coupling comprising the steps of: selecting the ratio of the working area of the electric field anode 4051 to the discharge area of the electric field cathode 4052 to be 1.338:1, the inter-pole distance between the electric field anode 4051 and the electric field cathode 4052 to be 5mm, the length of the electric field anode 4051 to be 2mm, the length of the electric field cathode 4052 to be 10mm, the electric field anode 4051 including a fluid channel, the fluid channel including an inlet end and an outlet end, the electric field cathode 4052 disposed in the fluid channel, the electric field cathode 4052 extending in the direction of the fluid channel, the inlet end of the electric field anode 4051 being flush with the proximal inlet end of the electric field cathode 4052, the outlet end of the electric field anode 4051 being flush with the proximal outlet end of the electric field cathode 4052, and further realizing the electric field coupling times to be less than or equal to 3 under the effect of the electric field anode 4051 and the electric field cathode 4052.

Example 12

The structural schematic diagram of the electric field device provided in this embodiment is shown in fig. 6. As shown in fig. 6, the electric field device includes an electric field cathode 5081 and an electric field anode 5082 electrically connected to a cathode and an anode of a dc power source, respectively, and an auxiliary electrode 5083 electrically connected to an anode of the dc power source. In this embodiment the electric field cathode 5081 has a negative potential and the electric field anode 5082 and the auxiliary electrode 5083 each have a positive potential.

Meanwhile, as shown in fig. 6, the auxiliary electrode 5083 is fixed to the field anode 5082 in this embodiment. After the electric field anode 5082 is electrically connected to the anode of the dc power source, the auxiliary electrode 5083 is also electrically connected to the anode of the dc power source, and the auxiliary electrode 5083 and the electric field anode 5082 have the same positive potential.

As shown in fig. 6, the auxiliary electrode 5083 may extend in the front-rear direction in the present embodiment, i.e., the length direction of the auxiliary electrode 5083 may be the same as the length direction of the electric field anode 5082.

As shown in fig. 6, in this embodiment, the electric field anode 5082 has a tubular shape, the electric field cathode 5081 has a rod shape, and the electric field cathode 5081 is inserted into the electric field anode 5082. In this embodiment, the auxiliary electrode 5083 is also tubular, and the auxiliary electrode 5083 and the field anode 5082 form an anode tube 5084. The front end of the anode tube 5084 is flush with the field cathode 5081, and the rear end of the anode tube 5084 is rearward beyond the rear end of the field cathode 5081, and the portion of the anode tube 5084 rearward beyond the field cathode 5081 is the auxiliary electrode 5083. That is, in the present embodiment, the electric field anode 5082 and the electric field cathode 5081 have the same length, and the electric field anode 5082 and the electric field cathode 5081 are opposite to each other in position in the front-rear direction; the auxiliary electrode 5083 is located behind the electric field anode 5082 and the electric field cathode 5081. Thus, an auxiliary electric field is formed between the auxiliary electrode 5083 and the electric field cathode 5081.

The electric field apparatus provided in this embodiment can be used to remove particulate matter from air, and the auxiliary electric field applies a backward force to the negatively charged oxygen ion stream between the electric field anode 5082 and the electric field cathode 5081. When the gas containing the substances to be treated flows into the anode tube 5084 from front to back, the oxygen ions with negative charges are combined with the substances to be treated in the process of moving towards the electric field anode 5082 and backwards, and because the oxygen ions have backward moving speed, the oxygen ions are combined with the substances to be treated, and strong collision cannot be generated between the oxygen ions and the substances to be treated, so that the larger energy consumption caused by the strong collision is avoided, the oxygen ions are easily combined with the substances to be treated, the charging efficiency of the substances to be treated in the gas is higher, further, under the action of the electric field anode 5082 and the anode tube 5084, more substances to be treated can be collected, and the higher dust removal efficiency of the electric field device is ensured.

In addition, as shown in fig. 6, in the present embodiment, an angle α is formed between the rear end of the anode 5084 and the rear end of the electric field cathode 5081, and 0 ° < α ≦ 125 °, or 45 ° ≦ α ≦ 125 °, or 60 ° ≦ α ≦ 100 °, or α ≦ 90 °.

In this embodiment, the electric field anode 5082, the auxiliary electrode 5083, and the electric field cathode 5081 form a plurality of dust removing units, so as to effectively improve the dust removing efficiency of the electric field apparatus.

The dc power supply in this embodiment may be a dc high voltage power supply. A discharge electric field, which is an electrostatic field, is formed between the electric field cathode 5081 and the electric field anode 5082. In the absence of the auxiliary electrode 5083, the ion flow in the electric field between the electric field cathode 5081 and the electric field anode 5082 is perpendicular to the electrode direction, and turns back and forth between the electrodes to flow, and causes the ions to turn back and forth between the electrodes to be consumed. Therefore, in this embodiment, the auxiliary electrode 5083 is used to shift the relative positions of the electrodes, so that the relative imbalance between the electric field anode 5082 and the electric field cathode 5081 is formed, which deflects the ion current in the electric field. In the electric field device, an auxiliary electrode 5083 forms an electric field that can provide an ion flow with directionality. The collecting rate of the particles entering the electric field along the ion flow direction is improved by nearly one time compared with the collecting rate of the particles entering the electric field along the reverse ion flow direction, so that the dust accumulation efficiency of the electric field is improved, and the power consumption of the electric field is reduced. In addition, the main reason that the dust collection efficiency of the dust collection electric field in the prior art is low is that the direction of dust entering the electric field is opposite to or perpendicular to the direction of ion flow in the electric field, so that the dust and the ion flow collide violently with each other and generate large energy consumption, and the charge efficiency is also influenced, so that the dust collection efficiency of the electric field in the prior art is reduced, and the energy consumption is increased.

When the electric field device is used for collecting dust in gas, the gas and the dust enter the electric field along the ion flow direction, so that the dust is fully charged, and the electric field consumption is low; the dust collecting efficiency of the monopole electric field can reach more than 99.99 percent. When gas and dust enter the electric field in the direction of the counter ion flow, the dust is insufficiently charged, the power consumption of the electric field is increased, and the dust collection efficiency is 40-75%. In addition, the ion flow formed by the electric field device in the embodiment is beneficial to unpowered fan fluid conveying, oxygen increasing, heat exchange and the like.

Example 13

The electric field device provided by the embodiment comprises an electric field cathode and an electric field anode which are respectively electrically connected with a cathode and an anode of a direct current power supply, and an auxiliary electrode is electrically connected with the cathode of the direct current power supply. In this embodiment, the auxiliary electrode and the electric field cathode have negative potentials, and the electric field anode has a positive potential.

In this embodiment, the auxiliary electrode can be fixed to the cathode of the electric field. Thus, after the electric field cathode is electrically connected with the cathode of the direct current power supply, the auxiliary electrode is also electrically connected with the cathode of the direct current power supply. Meanwhile, the auxiliary electrode extends in the front-rear direction in the present embodiment.

In this embodiment, the electric field anode is tubular, the electric field cathode is rod-shaped, and the electric field cathode is arranged in the electric field anode in a penetrating manner. In the present embodiment, the auxiliary electrode is also in the form of a rod, and the auxiliary electrode and the electric field cathode form a cathode rod. The front end of the cathode bar is extended forward beyond the front end of the electric field anode, and the part of the cathode bar extended forward beyond the electric field anode is the auxiliary electrode. That is, the length of the electric field anode is the same as that of the electric field cathode in the present embodiment, and the electric field anode and the electric field cathode are opposite in position in the front-back direction; the auxiliary electrode is positioned in front of the electric field anode and the electric field cathode. Thus, an auxiliary electric field is formed between the auxiliary electrode and the electric field anode, and the auxiliary electric field applies backward force to the negatively charged oxygen ion flow between the electric field anode and the electric field cathode, so that the negatively charged oxygen ion flow between the electric field anode and the electric field cathode has backward moving speed.

The electric field device that this embodiment provided can be used to the particulate matter in the desorption air, the gaseous by preceding rear inflow tubulose electric field positive pole that contains the material to be handled, the oxygen ion of taking the negative charge will combine together with the material to be handled to electric field positive pole and backward migration in-process, because the oxygen ion has backward migration velocity, the oxygen ion is when combining with the material to be handled, can not produce stronger collision between the two, thereby avoid causing great energy consumption because of stronger collision, make the oxygen ion easily combine together with the material to be handled, and make the charge efficiency of material to be handled higher in the gas, and then under the electric field positive pole effect, can collect more material to be handled, guarantee that this electric field device's dust collection efficiency is higher.

In this embodiment, the electric field anode, the auxiliary electrode, and the electric field cathode form a plurality of dust removing units, so as to effectively improve the dust removing efficiency of the electric field apparatus by using the plurality of dust removing units.

Example 14

The structural schematic diagram of the electric field device in this embodiment is shown in fig. 7. As shown in fig. 7, the auxiliary electrode 5083 extends in the left-right direction. In this embodiment, the length direction of the auxiliary electrode 5083 is different from the length direction of the electric field anode 5082 and the electric field cathode 5081. And the auxiliary electrode 5083 may be specifically perpendicular to the field anode 5082.

In this embodiment, the electric field cathode 5081 and the electric field anode 5082 are electrically connected to the cathode and the anode of the dc power supply, respectively, and the auxiliary electrode 5083 is electrically connected to the anode of the dc power supply. In this embodiment the electric field cathode 5081 has a negative potential and the electric field anode 5082 and the auxiliary electrode 5083 each have a positive potential.

As shown in fig. 7, in the present embodiment, the electric field cathode 5081 and the electric field anode 5082 are opposed to each other in the front-rear direction, and the auxiliary electrode 5083 is located behind the electric field anode 5082 and the electric field cathode 5081. Thus, an auxiliary electric field is formed between the auxiliary electrode 5083 and the field cathode 5081, and the auxiliary electric field applies a backward force to the negatively charged oxygen ion stream between the field anode 5082 and the field cathode 5081.

The electric field device that this embodiment provided can be used to the particulate matter in the desorption air, the electric field between electric field anode 5082 and the electric field cathode 5081 flows into by preceding back when the gas that contains the material to be treated, the oxygen ion of taking the negative charge will combine together with the material to be treated to electric field anode 5082 and backward migration in-process, because the oxygen ion has backward migration velocity, the oxygen ion is when combining with the material to be treated, can not produce stronger collision between the two, thereby avoid causing great energy consumption because of stronger collision, make the oxygen ion easily combine together with the material to be treated, and make the charge efficiency of the material to be treated in the gas higher, and then under electric field anode 5082's effect, can collect more material to be treated, guarantee that this electric field device's dust collection efficiency is higher.

Example 15

The structure schematic diagram of the electric field device in this embodiment is shown in fig. 8. As shown in fig. 8, the auxiliary electrode 5083 extends in the left-right direction. In this embodiment, the length direction of the auxiliary electrode 5083 is different from the length direction of the electric field anode 5082 and the electric field cathode 5081. And the auxiliary electrode 5083 may be specifically perpendicular to the field cathode 5081.

In this embodiment, the electric field cathode 5081 and the electric field anode 5082 are electrically connected to the cathode and the anode of the dc power supply, respectively, and the auxiliary electrode 5083 is electrically connected to the cathode of the dc power supply. In this embodiment, the electric field cathode 5081 and the auxiliary electrode 5083 each have a negative potential, and the electric field anode 5082 has a positive potential.

As shown in fig. 8, in the present embodiment, the electric field cathode 5081 and the electric field anode 5082 are opposed to each other in the front-rear direction, and the auxiliary electrode 5083 is positioned in front of the electric field anode 5082 and the electric field cathode 5081. Thus, an auxiliary electric field is formed between the auxiliary electrode 5083 and the field anode 5082, and the auxiliary electric field applies a backward force to the negatively charged oxygen ion stream between the field anode 5082 and the field cathode 5081, so that the negatively charged oxygen ion stream between the field anode 5082 and the field cathode 5081 has a backward moving velocity. When gas containing substances to be treated flows into an electric field between the electric field anode 5082 and the electric field cathode 5081 from front to back, oxygen ions with negative charges are combined with the substances to be treated in the process of moving towards the electric field anode 5082 and backwards, and the oxygen ions have backward moving speed, so that the oxygen ions are combined with the substances to be treated, and strong collision cannot be generated between the oxygen ions and the substances to be treated, thereby avoiding larger energy consumption caused by strong collision, enabling the oxygen ions to be easily combined with the substances to be treated, enabling the charging efficiency of the substances to be treated in the gas to be higher, further being capable of collecting more substances to be treated under the action of the electric field anode 5082, and ensuring that the dust removal efficiency of the electric field device is higher.

Example 16

The structure schematic diagram of the electric field device in this embodiment is shown in fig. 9. As shown in fig. 9, the electric field device includes an electric field device inlet 3085, a flow channel 3086, an electric field flow channel 3087, and an electric field device outlet 3088, which are sequentially communicated, a pre-electrode 3083 is installed in the flow channel 3086, a ratio of a cross-sectional area of the pre-electrode 3083 to a cross-sectional area of the flow channel 3086 is 99% -10%, the electric field device further includes an electric field cathode 3081 and an electric field anode 3082, and the electric field flow channel 3087 is located between the electric field cathode 3081 and the electric field anode 3082.

The electric field device provided by this embodiment can be used for removing particles in air, the gas containing particles enters the flow channel 3086 through the inlet 3085 of the electric field device, the pre-electrode 3083 installed in the flow channel 3086 conducts electrons to a part of particles, and a part of particles are charged, when the particles enter the electric field flow channel 3087 through the flow channel 3086, the electric field anode 3082 applies attraction to the charged particles, the charged particles move towards the electric field anode 3082 until the part of charged particles is attached to the electric field anode 3082, and simultaneously, an ionization electric field is formed between the electric field cathode 3081 and the electric field anode 3082 in the electric field flow channel 3087, the ionization electric field charges another part of uncharged particles, so that another part of particles is also attracted by the electric field anode 3082 after being charged and is finally attached to the electric field anode 3082, thereby the electric field device is used to make the particles have higher charging efficiency, the electrification is more sufficient, so that the electric field anode 3082 can collect more particulate matters, and the collection efficiency of the electric field device for the particulate matters in the gas is higher.

The cross-sectional area of the pre-electrode 3083 refers to the sum of the areas of the pre-electrode 3083 along the solid portion of the cross-section. In addition, the ratio of the cross-sectional area of the pre-electrode 3083 to the cross-sectional area of the flow channel 3086 may be 99-10%, or 90-10%, or 80-20%, or 70-30%, or 60-40%, or 50%.

As shown in fig. 9, in the present embodiment, the front electrode 3083 and the electric field cathode 3081 are both electrically connected to the cathode of the dc power supply, and the electric field anode 3082 is electrically connected to the anode of the dc power supply. In this embodiment, the pre-electrode 3083 and the electric field cathode 3081 both have a negative potential and the electric field anode 3082 has a positive potential.

As shown in fig. 9, the front electrode 3083 in this embodiment may be a mesh, i.e. has a plurality of through holes. Thus, when the gas flows through the flow channel 3086, the gas and the particles can flow through the front electrode 3083 conveniently by using the structural characteristics that the front electrode 3083 is provided with the through holes, and the particles in the gas can be more fully contacted with the front electrode 3083, so that the front electrode 3083 can conduct electrons to more particles, and the charging efficiency of the particles is higher.

As shown in fig. 9, in the present embodiment, the electric field anode 3082 has a tubular shape, the electric field cathode 3081 has a rod shape, and the electric field cathode 3081 is inserted into the electric field anode 3082. In this embodiment, the electric field anode 3082 and the electric field cathode 3081 are asymmetric. The ionized electric field formed when the gas flows between the electric field cathode 3081 and the electric field anode 3082 charges the particles, and the charged particles are collected on the inner wall of the electric field anode 3082 under the attraction force applied by the electric field anode 3082.

As shown in fig. 9, in the present embodiment, the field anode 3082 and the field cathode 3081 both extend in the front-rear direction, and the front end of the field anode 3082 is located forward of the front end of the field cathode 3081 in the front-rear direction. As shown in fig. 9, the rear end of the field anode 3082 is located behind the rear end of the field cathode 3081 in the front-rear direction. The electric field anode 3082 in this embodiment is longer in length in the front-rear direction, so that the adsorption surface area on the inner wall of the electric field anode 3082 is larger, and therefore, the attraction force to the particles with negative potential is larger, and more particles can be collected.

As shown in fig. 9, the electric field cathode 3081 and the electric field anode 3082 form a plurality of ionization units in the present embodiment, so as to collect more particulate matters by using a plurality of ionization units, and make the electric field apparatus have stronger collection capability and higher collection efficiency for the particulate matters.

In this embodiment, the contaminants include common dust with low conductivity, and metal dust, mist, aerosol with high conductivity. The collecting process of the electric field device in the embodiment for the common dust with weaker conductivity and the pollutants with stronger conductivity in the gas is as follows: when gas flows into the flow channel 3086 through the inlet 3085 of the electric field device, pollutants such as metal dust, fog drops or aerosol with high conductivity in the gas are directly negatively charged when contacting the front electrode 3083 or when the distance between the gas and the front electrode 3083 reaches a certain range, then all the pollutants enter the electric field flow channel 3087 along with the gas flow, the dust removal electric field anode 3082 exerts attraction force on the negatively charged metal dust, fog drops or aerosol and collects the partial pollutants, meanwhile, the dust removal electric field anode 3082 and the dust removal electric field cathode 3081 form an ionization electric field, the ionization electric field obtains oxygen ions through ionizing oxygen in the gas, the negatively charged oxygen ions are combined with the common dust to negatively charge the common dust, the dust removal electric field anode 3082 exerts attraction force on the negatively charged dust and collects the partial pollutants, and therefore the pollutants with high conductivity and low conductivity in the gas are collected, and the electric field device can collect substances in a wider variety and has stronger collection capability.

The above-described electric field cathode 3081 is also referred to as a corona charging electrode in the present embodiment. The direct current power supply is specifically a direct current high voltage power supply. A direct current high voltage is introduced between the front electrode 3083 and the electric field anode 3082 to form a conductive loop; a DC high voltage is applied between the electric field cathode 3081 and the electric field anode 3082 to form an ionization discharge corona electric field. The pre-electrode 3083 is a densely distributed conductor in this embodiment. When the particles such as dust and the like which are easy to be charged pass through the front electrode 3083, the front electrode 3083 directly gives electrons to the particles, the particles are charged and then are adsorbed by the heteropolar electric field anode 3082; meanwhile, the uncharged particles pass through an ionization region formed by the electric field cathode 3081 and the electric field anode 3082, and ionized oxygen formed in the ionization region charges electrons to the particles, so that the particles are charged continuously and adsorbed by the heteropolar electric field anode 3082.

The electric field device in this embodiment can form two or more electrifying modes. For example, when the oxygen in the gas is sufficient, the ionization discharge corona electric field formed between the electric field cathode 3081 and the electric field anode 3082 can be used to ionize the oxygen to charge the particles in the gas, and then the electric field anode 3082 is used to collect the particles; when the oxygen content in the gas is too low or in an oxygen-free state, or the particles are conductive dust fog, etc., the particles in the gas are directly electrified by the front electrode 3083, and the particles in the gas are adsorbed by the electric field anode 3082 after being fully electrified. The electric field device can be used in various environments with low oxygen content while the electric field can collect various dusts, so that the dust application range of dust treatment of the dust collecting electric field is expanded, and the dust collecting efficiency is improved. In the embodiment, the electric fields of the two charging modes are adopted, so that high-resistance dust which is easy to charge and low-resistance metal dust, aerosol, liquid mist and the like which are easy to electrify can be collected at the same time. The two electrifying modes are used simultaneously, and the application range of the electric field is expanded.

Example 24

The electric field generating unit in this embodiment is shown in fig. 2, and includes a dust removing electric field anode 4051 and a dust removing electric field cathode 4052 for generating an electric field, where the dust removing electric field anode 4051 and the dust removing electric field cathode 4052 are respectively electrically connected to two electrodes of a power supply, the power supply is a dc power supply, and the dust removing electric field anode 4051 and the dust removing electric field cathode 4052 are respectively electrically connected to an anode and a cathode of the dc power supply. In this embodiment, the dedusting electric field anode 4051 has a positive potential and the dedusting electric field cathode 4052 has a negative potential.

The dc power supply in this embodiment may be a dc high voltage power supply. A discharge electric field, which is an electrostatic field, is formed between the dust removing electric field anode 4051 and the dust removing electric field cathode 4052.

In this embodiment, the anode 4051 of the dedusting electric field is in the shape of a hollow regular hexagon tube, the cathode 4052 of the dedusting electric field is in the shape of a rod, the cathode 4052 of the dedusting electric field is inserted into the anode 4051 of the dedusting electric field, the length of the anode 4051 of the dedusting electric field is 5cm, the length of the cathode 4052 of the dedusting electric field is 5cm, the dedusting electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the dedusting electric field cathode 4052 is arranged in the fluid channel, the dedusting electric field cathode 4052 extends along the direction of the fluid channel, the inlet end of the dedusting electric field anode 4051 is flush with the near inlet end of the dedusting electric field cathode 4052, the outlet end of the dedusting electric field anode 4051 is flush with the near outlet end of the dedusting electric field cathode 4052, the distance between the anode 4051 of the dedusting electric field and the cathode 4052 of the dedusting electric field is 9.9mm, and then the anode 4051 and the cathode 4052 are made to resist high temperature impact.

The electric field device that this embodiment provided can be used to be arranged in the desorption air the particulate matter, and high temperature resistant strikes, can collect more the graininess dust that is moreover, guarantees that this electric field generating unit's collection dirt efficiency is higher. The dust collection efficiency is 99.9% corresponding to the electric field temperature of 200 ℃; the dust collection efficiency is 90% corresponding to the electric field temperature of 400 ℃; the electric field temperature of 500 ℃ corresponds to a dust collecting efficiency of 50%.

The electric field device in the embodiment comprises a plurality of electric field stages formed by the electric field generating units, and the electric field stages are arranged in plurality, so that the dust collecting efficiency of the electric field device is effectively improved by utilizing a plurality of dust collecting units. In the same electric field level, the anodes of the dust removing electric fields have the same polarity, and the cathodes of the dust removing electric fields have the same polarity.

Example 25

The electric field generating unit in this embodiment can be applied to an electric field device, as shown in fig. 2, and includes a dust removing electric field anode 4051 and a dust removing electric field cathode 4052 for generating an electric field, where the dust removing electric field anode 4051 and the dust removing electric field cathode 4052 are respectively electrically connected to two electrodes of a power supply, the power supply is a dc power supply, and the dust removing electric field anode 4051 and the dust removing electric field cathode 4052 are respectively electrically connected to an anode and a cathode of the dc power supply. In this embodiment, the dedusting electric field anode 4051 has a positive potential and the dedusting electric field cathode 4052 has a negative potential.

In this embodiment, the anode 4051 of the dedusting electric field is in the shape of a hollow regular hexagon tube, the cathode 4052 of the dedusting electric field is in the shape of a rod, the cathode 4052 of the dedusting electric field is inserted into the anode 4051 of the dedusting electric field, the length of the anode 4051 of the dedusting electric field is 9cm, the length of the cathode 4052 of the dedusting electric field is 9cm, the dedusting electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the dedusting electric field cathode 4052 is arranged in the fluid channel, the dedusting electric field cathode 4052 extends along the direction of the fluid channel, the inlet end of the dedusting electric field anode 4051 is flush with the near inlet end of the dedusting electric field cathode 4052, the outlet end of the dedusting electric field anode 4051 is flush with the near outlet end of the dedusting electric field cathode 4052, the distance between the anode 4051 of the dedusting electric field and the cathode 4052 of the dedusting electric field is 139.9mm, and then the anode 4051 and the cathode 4052 are made to resist high temperature impact.

The electric field device in the embodiment comprises a plurality of electric field stages formed by the electric field generating units, and the electric field stages are arranged in plurality, so that the dust collecting efficiency of the electric field device is effectively improved by utilizing a plurality of dust collecting units. In the same electric field level, the anodes of the storage electric fields have the same polarity, and the cathodes of the dust removal electric fields have the same polarity.

Example 26

In this embodiment, the anode 4051 of the dedusting electric field is in the shape of a hollow regular hexagon tube, the cathode 4052 of the dedusting electric field is in the shape of a rod, the cathode 4052 of the dedusting electric field is inserted into the anode 4051 of the dedusting electric field, the length of the anode 4051 of the dedusting electric field is 1cm, the length of the cathode 4052 of the dedusting electric field is 1cm, the dedusting electric field anode 4051 comprises a fluid channel, the fluid channel comprises an inlet end and an outlet end, the dedusting electric field cathode 4052 is arranged in the fluid channel, the dedusting electric field cathode 4052 extends along the direction of the fluid channel, the inlet end of the dedusting electric field anode 4051 is flush with the near inlet end of the dedusting electric field cathode 4052, the outlet end of the dedusting electric field anode 4051 is flush with the near outlet end of the dedusting electric field cathode 4052, the distance between the anode 4051 of the dedusting electric field and the cathode 4052 of the dedusting electric field is 2.4mm, and then the anode 4051 and the cathode 4052 are made to resist high temperature impact.

The electric field stages in the plurality of electric field stages are connected in series, the electric field stages in series are connected through the connecting shell, and the distance between the electric field stages of two adjacent stages is larger than 1.4 times of the inter-pole distance. The electric field level is two levels, namely a first level electric field and a second level electric field, and the first level electric field and the second level electric field are connected in series through a connecting shell.

In this embodiment, the gas may be a gas to be introduced into the engine or a gas discharged from the engine.

Example 27

The dc power supply in this embodiment may be a dc high voltage power supply. A discharge electric field, which is an electrostatic field, is formed between the anode 4051 and the cathode 4052.

As shown in fig. 2 and fig. 3, in this embodiment, the dedusting electric field anode 4051 is in a hollow regular hexagon tube shape, the dedusting electric field cathode 4052 is in a rod shape, the dedusting electric field cathode 4052 is inserted into the dedusting electric field anode 4051, the dedusting electric field anode 4051 is 3cm in length, the dedusting electric field cathode 4052 is 2cm in length, the dedusting electric field anode 4051 includes a fluid channel, the fluid channel includes an inlet end and an outlet end, the dedusting electric field cathode 4052 is disposed in the fluid channel, the dedusting electric field cathode 4052 extends in the direction of the fluid channel, the inlet end of the dedusting electric field anode 4051 is flush with the near-inlet end of the dedusting electric field cathode 4052, an included angle α is formed between the outlet end of the dedusting electric field anode 4051 and the near-outlet end of the dedusting electric field cathode 4052, and α is 90 °, the distance between the dedusting electric field anode 4051 and the dedusting electric field cathode 4052 is 20mm, and under the actions of the dedusting electric field anode 4051 and the dedusting electric field cathode 4052, making it resistant to high temperature shock.

The electric field stages in the plurality of electric field stages are connected in series, the electric field stages in series are connected through the connecting shell, and the distance between the electric field stages of two adjacent stages is larger than 1.4 times of the inter-pole distance. As shown in fig. 5, the electric field level is two levels, i.e., a first level electric field and a second level electric field, and the first level electric field and the second level electric field are connected in series by the connecting housing. In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

An electric field device, comprising an electric field device inlet, an electric field device outlet, an electric field cathode and an electric field anode, wherein the electric field cathode and the electric field anode are used for generating an ionization electric field; the length of the electric field cathode is 30-180 mm.
The electric field device of claim 1, wherein the electric field cathode has a length of 54-176 mm.
The electric field device according to claim 1 or 2, wherein the electric field cathode length is such that the number of coupling times of the ionizing electric field is 3 or less.
An electric field arrangement according to any of claims 1-3, characterized in that the ratio of the working area of the electric field anode to the discharge area of the electric field cathode, the pole separation between the electric field anode and the electric field cathode, the electric field anode length and the electric field cathode length are such that the number of couplings of the ionizing electric field is < 3.
A method of reducing electric field coupling, comprising the steps of:

comprises selecting the length of the cathode of the electric field to make the coupling frequency of the electric field less than or equal to 3.
The method of claim 5, comprising selecting the electric field cathode length to be 30-180 mm.
A method of reducing electric field coupling as claimed in claim 5 or 6 comprising selecting the electric field cathode length to be 54-176 mm.
A method for reducing electric field coupling as claimed in any one of claims 5 to 7 wherein the ratio of the working area of the electric field anode to the discharge area of the electric field cathode, the inter-polar distance between the electric field anode and the electric field cathode, the electric field anode length and the electric field cathode length are selected such that the number of couplings of the ionizing electric field is < 3.