A high-efficiency electrostatic precipitator

Abstract

The invention discloses a high-efficiency electrostatic precipitator, comprising a main body, a high-pressure zone collecting plate module, a corona electrode module, a low-pressure zone anode plate module, a low-pressure zone cathode plate module, a plurality of first support rods, a plurality of second support rods, a plurality of third support rods and a plurality of fourth support rods; the high-pressure zone collecting plate module and the corona electrode module are placed alternately from top to bottom; the low-pressure zone anode plate module and the low-pressure zone cathode plate module are placed alternately from top to bottom; the first support rod is used to support the high-pressure zone collecting plate module; the second support rod is used to support the corona electrode module; the third support rod is used to support the low-pressure zone anode plate module; the fourth support rod is used to support the low-pressure zone cathode plate module; an upper shell and a lower shell are arranged on the main body; the distance between the corona electrode and the collecting plate is reduced, the number of parallel corona electrodes is increased, the particle charging rate is increased, and the dust removal efficiency is improved; the first protrusion and the second protrusion reduce the gas flow rate and improve the collection efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, and in particular to a high-efficiency electrostatic precipitator. Background Art

[0002] Electrostatic precipitator is a device that uses the principle of high-voltage electrostatic action to capture dust. In the mold industry, lathes, milling machines, drilling machines and other processing machines will generate a lot of dust and oil smoke during operation, which will pollute the production workshop and the atmospheric environment and endanger people's health. Therefore, at the outlet of these processing machines, small electrostatic precipitators are often installed to collect oil smoke and dust.

[0003] However, the existing electrostatic precipitator has a low working efficiency and is insufficient to meet environmental protection requirements. The main reason is that the distance between the corona electrode and the collecting plate is too large and the arrangement of the corona electrode is not good. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high-efficiency electrostatic precipitator.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A high-efficiency electrostatic precipitator comprises a main body, a high-pressure zone collecting plate module, a corona electrode module, a low-pressure zone anode plate module, a low-pressure zone cathode plate module, a plurality of first support rods, a plurality of second support rods, a plurality of third support rods and a plurality of fourth support rods; the high-pressure zone collecting plate module and the corona electrode module are placed alternately from top to bottom; the low-pressure zone anode plate module and the low-pressure zone cathode plate module are placed alternately from top to bottom; the first support rod is used to support the high-pressure zone collecting plate module; the second support rod is used to support the corona electrode module; the third support rod is used to support the low-pressure zone anode plate module; the fourth support rod is used to support the low-pressure zone cathode plate module; an upper shell and a lower shell are arranged on the main body; the corona electrode module comprises a plurality of layers of corona electrodes, each layer having three corona electrodes placed horizontally; the low-pressure zone anode plate module comprises a plurality of low-pressure zone anode plates, each of which is provided with a first protrusion.

[0007] Preferably, the high-voltage region collecting plate module includes a plurality of high-voltage region collecting plates, and the distance between the two high-voltage region collecting plates is 20 mm.

[0008] Preferably, each of the corona electrodes is composed of a molybdenum wire with a radius of 0.23 mm.

[0009] Preferably, the low-voltage zone cathode plate module comprises a plurality of low-voltage zone cathode plates, and the distance between two low-voltage zone cathode plates is 14 mm; and each low-voltage zone cathode plate is provided with a second protrusion.

[0010] Preferably, one end of the first support rod is placed on the lower shell, and the other end of the first support rod passes through the high-voltage region collecting plate and is connected to the upper shell.

[0011] Preferably, one end of the second support rod is connected to the lower shell, and the other end of the second support rod passes through the corona electrode and is connected to the upper shell.

[0012] Preferably, one end of the third support rod is connected to the lower shell, and the other end of the third support rod passes through the low-voltage zone anode plate and is connected to the upper shell.

[0013] Preferably, one end of the fourth support rod is connected to the lower shell, and the other end of the fourth support rod passes through the low-voltage zone anode plate and the low-voltage zone cathode plate in sequence and is connected to the upper shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention designs a high-efficiency electrostatic precipitator, wherein three corona electrodes are horizontally placed on each layer; each corona electrode is composed of a molybdenum wire with a radius of 0.23 mm, and there are 15 molybdenum wires in three rows in total. Three molybdenum wires are placed on each layer as the optimal molybdenum wire arrangement number, which effectively improves the charging efficiency of dust and oil droplets; the distance between the corona electrode and the adjacent high-voltage area collecting plate is 10 mm, at which the concentration of ions and electrons under the uneven high-voltage electric field is the highest, and dust and oil droplets are most easily charged; the first protrusion and the second protrusion are used to reduce the gas flow rate and improve the collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure proposed by the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the main body proposed by the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the molybdenum wire proposed in the present invention.

[0019] Legend:

[0020] 1. Main body, 2. High voltage area collecting plate module,

[0021] 3. Corona electrode module, 4. Low voltage zone anode plate module,

[0022] 5. Low-voltage zone cathode plate module, 6. First support rod,

[0023] 7. The second support rod, 8. The third support rod,

[0024] 9. Fourth support rod, 11. Upper shell,

[0025] 12. Lower shell, 21. High voltage area collecting plate,

[0026] 31. Corona electrode, 32. Molybdenum wire,

[0027] 41. Anode plate in low voltage area, 42. First protrusion,

[0028] 51. cathode plate in low voltage area, 52. second raised portion,

[0029] 100, insulation sheet for high voltage area, 200, insulation sheet for low voltage area. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Reference Figures 1 to 3A high-efficiency electrostatic precipitator comprises a main body 1, a high-pressure zone collecting plate module 2, a corona electrode module 3, a low-pressure zone anode plate module 4, a low-pressure zone cathode plate module 5, a plurality of first support rods 6, a plurality of second support rods 7, a plurality of third support rods 8 and a plurality of fourth support rods 9; the high-pressure zone collecting plate module 2 and the corona electrode module 3 are alternately placed from top to bottom; the low-pressure zone anode plate module 4 and the low-pressure zone cathode plate module 5 are alternately placed from top to bottom; the first support rod 6 is used to support the high-pressure zone collecting plate module 2; the second support rod 7 is used to support the corona electrode module 3; the third support rod 8 is used to support the low-pressure zone anode plate module 4; the fourth support rod 9 is used to support the low-pressure zone cathode plate module 5; an upper shell 11 and a lower shell 12 are provided on the main body 1.

[0033] The high-voltage collecting plate module 2 includes a plurality of high-voltage collecting plates 21, and the distance between two high-voltage collecting plates 21 is 20 mm; the high-voltage collecting plates 21 and the low-voltage anode plate 41 are both made of aluminum alloy with a thickness of 2-8 mm.

[0034] The corona electrode module 3 includes several layers of corona electrodes 31, and each layer has three corona electrodes 31 placed horizontally; each corona electrode 31 is composed of a molybdenum wire 32 with a radius of 0.23 mm, and there are 15 molybdenum wires 32 in three rows. Three molybdenum wires 32 are placed in each layer, which is the optimal molybdenum wire arrangement number, effectively improving the charging efficiency of dust and oil droplets; the distance between the corona electrode 31 and the adjacent high-voltage area collecting plate 21 is 10 mm. At this distance, the concentration of ions and electrons under the uneven high-voltage electric field is the highest, and dust and oil droplets are most easily charged.

[0035] The low-pressure zone anode plate module 4 includes a plurality of low-pressure zone anode plates 41, each of which is provided with a first protrusion 42; the low-pressure zone cathode plate module 5 includes a plurality of low-pressure zone cathode plates 51, and the spacing between two low-pressure zone cathode plates 51 is 14 mm; each low-pressure zone cathode plate 51 is provided with a second protrusion 52; the first protrusion 42 and the second protrusion 52 are used to reduce the gas flow rate and improve the collection efficiency.

[0036] One end of the first support rod 6 is placed on the lower shell 12, and the other end of the first support rod 6 passes through the high-voltage zone collecting plate 21 and is connected to the upper shell 11; one end of the second support rod 7 is connected to the lower shell 12, and the other end of the second support rod 8 passes through the corona electrode 31 and is connected to the upper shell 11; one end of the third support rod 8 is connected to the lower shell 12, and the other end of the third support rod 8 passes through the low-voltage zone anode plate 41 and is connected to the upper shell 11; one end of the fourth support rod 9 is connected to the lower shell 12, and the other end of the fourth support rod 9 passes through the low-voltage zone anode plate 41 and the low-voltage zone cathode plate 51 in sequence and is connected to the upper shell 11; high-voltage zone insulating sheets 100 are provided at both ends of the second support rod 7, and low-voltage zone insulating sheets 200 are provided at both ends of the fourth support rod 9.

[0037] The working principle of the present invention is as follows: after the high-voltage DC power supply and the low-voltage DC power supply are turned on, when a negative high-voltage DC power supply is applied between the high-voltage region collecting plate 21 and the corona electrode 31, an uneven high-voltage electric field is generated, and a uniform electric field is generated between the low-voltage region cathode plate 51 and the low-voltage region anode plate 41; when the applied voltage is sufficient, a corona discharge is generated near the corona electrode 31, forming a large number of electrons and positive and negative ions. When oil droplets and dust pass through the electric field, the dust absorbs ions or electrons and is charged. The charged dust is charged by the electric field force. Under the action of the uniform electric field, the positively charged dust moves toward the cathode plate 51 in the low-pressure area, and the negatively charged dust moves toward the anode plate 41 in the low-pressure area, and is collected by the cathode plate 51 in the low-pressure area and the anode plate 41 in the low-pressure area. Finally, the clean gas is discharged from the main body 1.

[0038] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-efficiency electrostatic precipitator, characterized in that: It includes a main body, a high-voltage collecting plate module, a corona electrode module, a low-voltage anode plate module, a low-voltage cathode plate module, a plurality of first support rods, a plurality of second support rods, a plurality of third support rods and a plurality of fourth support rods; the high-voltage collecting plate module and the corona electrode module are placed alternately from top to bottom; the low-voltage anode plate module and the low-voltage cathode plate module are placed alternately from top to bottom; the first support rod is used to support the high-voltage collecting plate module; the second support rod is used to support the corona electrode module; the third support rod is used to support the low-voltage anode plate module; the fourth support rod is used to support the low-voltage cathode plate module; an upper shell and a lower shell are arranged on the main body; the corona electrode module includes a plurality of layers of corona electrodes, each layer having three corona electrodes placed horizontally; the low-voltage anode plate module includes a plurality of low-voltage anode plates, each of which is provided with a first protrusion.

2. A high-efficiency electrostatic precipitator according to claim 1, characterized in that: The high-voltage region collecting plate module includes a plurality of high-voltage region collecting plates, and the distance between two high-voltage region collecting plates is 20 mm.

3. A high-efficiency electrostatic precipitator according to claim 1, characterized in that: Each of the corona electrodes is composed of a molybdenum wire with a radius of 0.23 mm.

4. A high-efficiency electrostatic precipitator according to claim 1, characterized in that: The low-voltage area cathode plate module includes a plurality of low-voltage area cathode plates, and the distance between two low-voltage area cathode plates is 14 mm; each of the low-voltage area cathode plates is provided with a second protrusion.

5. A high-efficiency electrostatic precipitator according to claim 2, characterized in that: One end of the first support rod is placed on the lower shell, and the other end of the first support rod passes through the high-voltage region collecting plate and is connected to the upper shell.

6. A high-efficiency electrostatic precipitator according to claim 3, characterized in that: One end of the second support rod is connected to the lower shell, and the other end of the second support rod passes through the corona electrode and is connected to the upper shell.

7. A high-efficiency electrostatic precipitator according to claim 1, characterized in that: One end of the third support rod is connected to the lower shell, and the other end of the third support rod passes through the low-voltage area anode plate and is connected to the upper shell.

8. A high-efficiency electrostatic precipitator according to claim 4, characterized in that: One end of the fourth support rod is connected to the lower shell, and the other end of the fourth support rod passes through the low-voltage area anode plate and the low-voltage area cathode plate in sequence and is connected to the upper shell.

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