CN108246509B - Cathode frame for electrostatic dust collector - Google Patents
Cathode frame for electrostatic dust collector Download PDFInfo
- Publication number
- CN108246509B CN108246509B CN201810105722.1A CN201810105722A CN108246509B CN 108246509 B CN108246509 B CN 108246509B CN 201810105722 A CN201810105722 A CN 201810105722A CN 108246509 B CN108246509 B CN 108246509B
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- China
- Prior art keywords
- cathode
- rack
- rotating shaft
- dust collector
- top plate
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- 239000000428 dust Substances 0.000 title claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000012717 electrostatic precipitator Substances 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 4
- 230000005684 electric field Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/86—Electrode-carrying means
Landscapes
- Electrostatic Separation (AREA)
Abstract
The invention discloses a cathode frame for an electrostatic dust collector, which comprises a top plate, a bottom plate and a supporting plate, wherein the top plate is provided with a first groove; the top plate is provided with a plurality of bearing seats, each bearing seat is internally provided with a rotating shaft, and the bottom end of each rotating shaft penetrates through the top plate downwards and is sleeved with a gear; the supporting plate is slidably connected with a rack, and each gear is meshed with the rack; the cathode frame further comprises a driving device for driving the rack to move linearly. The cathode frame for the electrostatic dust collector provided by the invention realizes the rotatable connection of the metal rod of the cathode and the cathode frame bracket, and can synchronously drive each cathode on the cathode frame to rotate for a certain angle, so that two sides of each bur sheet on the cathode can be a windward side, each bur sheet can keep a good discharge effect in a longer time, and the cleaning frequency of the cathode is correspondingly reduced.
Description
Technical Field
The invention relates to the technical field of electrostatic dust removal equipment, in particular to an electrostatic dust collector and a cathode frame thereof.
Background
In the electrostatic precipitator, a cathode (or "cathode needle", "cathode wire", etc.) for discharging is one of important parts. In the prior art, a cathode needle with sheet-shaped prickles is widely applied, for example, a patent with application publication number CN 105817329a discloses a prickle sheet discharge cathode wire of an electrostatic dust collector, and the disclosed cathode is a cathode structure common in the prior art. Referring to fig. 1, in the electrostatic precipitator, although the anode plate 92' is used for capturing the dotted particles to remove dust, the dirt is inevitably accumulated after the cathode contacts the inlet air containing the dirt. After the static dust collector is actually applied to an electric field of the static dust collector, because the wind direction in the electric field is constant and the cathode is fixedly connected with the cathode frame, dirt such as oil dirt and impurities can be accumulated on the windward side 901 'of each bur sheet on the cathode more easily, and the dirt is relatively difficult to be accumulated on the leeward side 902'. When the dirt accumulated on the windward side reaches a certain degree, the discharging effect of the sharp end of the bur sheet is greatly reduced, so that the effect of capturing particles with points on the anode plate is greatly reduced, and the normal operation of the electrostatic dust collector can be ensured after the electrostatic dust collector is stopped and cleaned. The working efficiency of the oil fume purifier is delayed due to frequent cathode cleaning.
It is seen that improvements and enhancements to the prior art are needed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an electrostatic dust collector and a cathode frame thereof, and aims to solve the technical problems that the cathode of the electrostatic dust collector in the prior art is fixedly connected and is frequently cleaned.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cathode holder for an electrostatic precipitator includes a top plate, a bottom plate, and a support plate disposed between the top plate and the bottom plate; the top plate is provided with a plurality of bearing seats, each bearing seat is internally provided with a rotating shaft, and the bottom end of each rotating shaft penetrates through the top plate downwards and is sleeved with a gear; the supporting plate is slidably connected with a rack, and each gear is meshed with the rack; the cathode frame further comprises a driving device for driving the rack to move linearly.
In the cathode frame for the electrostatic dust collector, the top end of each rotating shaft is respectively provided with a groove along the axial direction; at least one locking screw is arranged at the top of each rotating shaft corresponding to the groove.
In the cathode frame for the electrostatic dust collector, the cross section of each groove is circular or rectangular.
In the cathode frame for the electrostatic dust collector, a linear slide rail is arranged on the supporting plate, at least two linear bearings are arranged on the side, which is not provided with teeth, of the rack, and each linear bearing is connected with the linear slide rail respectively.
In the cathode frame for the electrostatic dust collector, the support plate is provided with a linear sliding groove, the side of the rack which is not provided with teeth is provided with a sliding block which is adaptive to the shape of the linear sliding groove, and the sliding block is inserted into the linear sliding groove and can move linearly relative to the linear sliding groove.
In the cathode frame for the electrostatic dust collector, the rack and the sliding block are in bolted connection or welded connection.
In the cathode frame for the electrostatic dust collector, the cross section of the linear sliding groove is in a dovetail shape.
In the cathode frame for the electrostatic dust collector, the driving device is a cylinder; and the end part of the piston of the cylinder is connected with one end of the rack.
In the cathode frame for the electrostatic dust collector, the end of the piston rod of the air cylinder is in threaded connection with a connecting block, and the connecting block is connected with one end of the rack through a bolt.
Has the advantages that:
compared with the prior art, the cathode for the electrostatic dust collector is rotatably connected with the cathode frame by arranging the bearing seat and the rotating shaft; by arranging the gear, the rack and the driving device, the rack synchronously drives each cathode on the cathode frame to rotate anticlockwise or clockwise for a certain angle; therefore, two sides of each prickle sheet on the cathode needle have the same chance to become windward, so as to gather more oil stains, namely: each prickle piece can still keep better discharge effect in a longer time, the cleaning frequency of the cathode is reduced, and the working efficiency of the electrostatic dust collector is improved.
Drawings
FIG. 1 is a schematic top view of the electric field of a prior art electrostatic precipitator.
Fig. 2 is a front view of a cathode holder for an electrostatic precipitator according to the present invention.
Fig. 3 is a left side view of a cathode holder for an electrostatic precipitator according to the present invention.
Fig. 4 is a top view of a cathode holder for an electrostatic precipitator according to the present invention.
Fig. 5 is a partially enlarged view of the region S in fig. 2.
Fig. 6 is a schematic view of the connection between the rack and the slider in the cathode holder for an electrostatic precipitator according to the present invention.
Fig. 7 is a schematic top view of an electric field applied to a cathode holder according to the present invention.
Detailed Description
The present invention provides a cathode frame for an electrostatic precipitator, which is described in further detail below with reference to the accompanying drawings and examples in order to make the objects, technical solutions and effects of the present invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2 to 5, the present invention provides a cathode frame for an electrostatic precipitator. For ease of understanding, the metal rod and barbed sheet of the cathode are shown in fig. 2, and the housing of the electrostatic precipitator is shown in phantom in fig. 2 and 7, but the housing and cathode of the electrostatic precipitator are not considered to be within the scope of the present invention. For ease of viewing, only some of the teeth are schematically depicted in fig. 2 at the left end of the rack; the cylinder is not shown in fig. 3, and the gear is shown in cross-section in fig. 3 and 5. In addition, the prickle tip is shown facing the wind direction (the direction of the arrow in the figure) in fig. 2 for easy observation, and in practical application, the prickle tip is perpendicular to the wind direction or at an angle rather than parallel.
The cathode frame for the electrostatic dust collector comprises a top plate 11, a bottom plate 13 and a support plate 12 arranged between the top plate and the bottom plate; the top plate is provided with a plurality of bearing seats 2, each bearing seat is provided with a rotating shaft 3, and the bottom end of each rotating shaft penetrates through the top plate downwards and is sleeved with a gear 41; a rack 42 is connected to the support plate in a sliding manner, and each gear 41 is meshed with the rack 42; the cathode frame further comprises a driving device for driving the rack to move linearly. It will be appreciated that in practice, since the metal rods 91 of the cathodes 9 are generally provided in the same size, the bearing housings are correspondingly identical, the shafts are correspondingly identical, and the gears are correspondingly identical. The bearing seats on the top plate are typically arranged at the same spacing for ease of fabrication and installation.
As can be seen from fig. 2, the top end of the rotating shaft 3 is used for connecting with the bottom end of the metal rod 91 of the corresponding cathode. As shown in fig. 3, for the convenience of connection, a groove 301 (shown by a dotted line in fig. 3) is respectively formed at the top end of each rotating shaft along the axial direction; at least one locking screw 31 is arranged at the top of each rotating shaft corresponding to the groove. Namely, the bottom end of the metal rod 91 of the cathode is inserted into the groove 301 at the top end of the corresponding rotating shaft 3, and the locking screw 31 is screwed down to realize connection, so that the installation is convenient and quick, and the later-stage disassembly is convenient.
Since the metal rod 91 of the cathode is generally a round rod or a square rod in the prior art, the cross section (i.e., the horizontal section) of each groove 301 in the cathode holder according to the present invention is circular or rectangular in order to more conveniently adapt to the shape of the metal rod of the cathode.
The invention provides two modes for realizing slidable connection between the rack and the support plate. The first connection mode is as follows: the support plate is provided with a linear slide rail, at least two linear bearings are arranged on the side, which is not provided with teeth, of the rack, and each linear bearing is connected with the linear slide rail respectively. In practical application, because the linear bearing and the linear slide rail are standard procurement parts, the manufacturing cost and the assembly difficulty are reduced, the corresponding schematic diagrams of the linear bearing and the linear slide rail are not drawn in the attached drawings,
as shown in fig. 3 and 6, the second connection mode: the support plate 12 is provided with a linear slide groove 5, and the side of the rack on which the teeth are not provided (the left side in the view of fig. 3) is provided with a slider 43 (typically, 2 or more sliders are provided) that fits the shape of the linear slide groove, is inserted into the linear slide groove, and is linearly movable relative to the linear slide groove. Preferably, the rack and the slider are connected by bolts or welding. Referring to fig. 6, when the bolts are used for connection, stepped holes 4301 may be formed in each slider, threaded holes 4201 may be correspondingly formed in the rack, and the bolts (not shown) may be inserted into the stepped holes 4301 of each slider and screwed into the corresponding threaded holes 4201, so that connection may be achieved, and the bolts may be received in the stepped holes without interfering with direct sliding of the sliders and the sliding grooves.
Further, the cross section of the linear sliding groove 5 is in a dovetail shape, so that the linear sliding groove can bear larger load in the vertical direction, and the rack can stably and linearly slide.
Further, the driving device is a cylinder 6; and the end part of the piston of the cylinder is connected with one end of the rack. In order to realize the linear reciprocating motion of the rack, the driving device is set to be the air cylinder, which is a simple and easy scheme with low cost.
Referring to fig. 5 and 6, preferably, a connecting block is screwed to the end of the piston rod of the cylinder, and the connecting block is connected to one end of the rack by a bolt (not shown). Fig. 6 shows a threaded bore 4202 at the end of the rack for connection to a connection block.
The working principle of the invention is briefly described as follows:
referring to fig. 2, 5 and 7, in practical application, a plurality of anode plates are disposed in a housing of an electrostatic precipitator, and a cathode frame according to the present invention is disposed in two adjacent anode plates (only 4 cathode frames are schematically illustrated in fig. 7, but the present invention is not limited to this practical application), and the cathode frame can be connected to a bottom plate of the housing by bolts. The top end of each rotating shaft of each cathode frame is connected with a cathode. The cylinders of the cathode frames can be respectively arranged on a mounting seat, and the mounting seats are arranged on a bottom plate of a shell of the electrostatic dust collector. The cylinder is usually arranged at the end of the air outlet of the electrostatic dust collector, so that the air passing through the cylinder is the air after dust removal, namely: the dust deposition on the cylinder is very little.
Each time after a period of use (e.g., one day, one week, etc.), each cylinder piston is controlled to extend or retract, thereby controlling the corresponding rack to linearly reciprocate such that each cathode rotates clockwise or counterclockwise through a certain angle (typically 180 degrees) about the vertical axis. So control for the both sides of the prickle piece of each negative pole can both fully contact with electrostatic precipitator's inlet air, and the both sides of prickle piece all are used for gathering the filth. When in design, the corresponding relation between the extending or retracting stroke of the air cylinder and the rotating angle of the cathode can be determined through related parameters of the rack and the gear. Therefore, compared with the prior art, the bur sheet can keep a better discharge effect for a longer time, so that the cleaning frequency of the cathode of the electrostatic field dust collector is reduced, and the working efficiency of the electrostatic dust collector is improved.
It should be noted that the invention is how to realize the rotatable connection between the cathode and the cathode frame, and how to drive each cathode to rotate synchronously, so the invention does not further limit how each cylinder is dustproof in practical use (for example, a dustproof cover is arranged on the periphery of the cylinder), and how to insulate between the cylinder and the cathode (for example, a connecting block or a cylinder piston rod is insulated).
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the protective scope of the present invention.
Claims (6)
1. A cathode frame for an electrostatic dust collector comprises a cathode, wherein the cathode comprises a metal rod and a bur sheet arranged on the metal rod, and is characterized by comprising a top plate, a bottom plate and a supporting plate arranged between the top plate and the bottom plate; the top plate is provided with a plurality of bearing seats, each bearing seat is internally provided with a rotating shaft, and the bottom end of each rotating shaft penetrates through the top plate downwards and is sleeved with a gear; the supporting plate is slidably connected with a rack, and each gear is meshed with the rack; the cathode frame further comprises a driving device for driving the rack to move linearly; the top end of each rotating shaft is respectively provided with a groove along the axial direction; at least one locking screw is arranged at the position, corresponding to the groove, of the top of each rotating shaft; the support plate is provided with a linear sliding groove, a sliding block which is matched with the linear sliding groove in shape is arranged on one side, which is not provided with teeth, of the rack, the sliding block is inserted into the linear sliding groove and can move linearly relative to the linear sliding groove, the top end of the rotating shaft is connected with the bottom end of the metal rod corresponding to the cathode, and the rotating shaft drives the cathode to rotate around a vertical axis, so that two surfaces of the bur sheet of each cathode can be fully contacted with the air inlet of the electrostatic dust collector.
2. The cathode holder for an electrostatic precipitator according to claim 1, wherein each groove has a circular or rectangular cross section.
3. The cathode holder for an electrostatic precipitator according to claim 1, wherein the rack and the slider are bolted or welded.
4. The cathode holder for an electrostatic precipitator according to claim 1, wherein the linear chute is dovetail-shaped in cross-section.
5. The cathode holder for an electrostatic precipitator according to claim 1, wherein the driving means is a cylinder; and the end part of the piston of the cylinder is connected with one end of the rack.
6. The cathode holder for an electrostatic precipitator according to claim 5, wherein a connecting block is threadedly connected to a piston rod end of the cylinder, and the connecting block is connected to one end of the rack by a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810105722.1A CN108246509B (en) | 2018-02-02 | 2018-02-02 | Cathode frame for electrostatic dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810105722.1A CN108246509B (en) | 2018-02-02 | 2018-02-02 | Cathode frame for electrostatic dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108246509A CN108246509A (en) | 2018-07-06 |
| CN108246509B true CN108246509B (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810105722.1A Expired - Fee Related CN108246509B (en) | 2018-02-02 | 2018-02-02 | Cathode frame for electrostatic dust collector |
Country Status (1)
| Country | Link |
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| CN (1) | CN108246509B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116832962B (en) * | 2022-07-22 | 2024-02-09 | 苏州科技大学 | Method for purifying cooking fume |
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| JPS5573359A (en) * | 1978-11-29 | 1980-06-03 | Hitachi Plant Eng & Constr Co Ltd | Suspended type electric dust collector |
| JPS57113851A (en) * | 1981-01-07 | 1982-07-15 | Hitachi Plant Eng & Constr Co Ltd | Electrical dust precipitator |
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| CN203610218U (en) * | 2013-11-28 | 2014-05-28 | 泊头市京润除尘设备制造有限公司 | Cathode rapping device for electric dust collector |
| CN103639045B (en) * | 2013-12-02 | 2016-01-13 | 武汉悟拓科技有限公司 | Based on the fine particle Electrostatic device rotating polar curve |
| CN105396692B (en) * | 2014-09-16 | 2017-05-24 | 孙红梅 | Air purifier having rotation corona electrode |
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2018
- 2018-02-02 CN CN201810105722.1A patent/CN108246509B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202316119U (en) * | 2011-11-29 | 2012-07-11 | 浙江信雅达环保工程有限公司 | Cathode device for electric dust removal |
| CN103316862A (en) * | 2013-07-12 | 2013-09-25 | 合肥京东方光电科技有限公司 | Substrate cleaning device |
| CN204107662U (en) * | 2014-09-16 | 2015-01-21 | 孙红梅 | Be provided with the air purifier rotating corona electrode |
| CN204724330U (en) * | 2015-06-26 | 2015-10-28 | 厦门理工学院 | A kind of cathode wire connector |
| CN105689340A (en) * | 2016-04-11 | 2016-06-22 | 常州气弹簧有限公司 | Automatic cleaning machine for air spring pressure pipe |
| CN107321502A (en) * | 2017-08-09 | 2017-11-07 | 爱优特空气技术（上海）有限公司 | A kind of sawtooth ionization device |
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| Publication number | Publication date |
|---|---|
| CN108246509A (en) | 2018-07-06 |
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Granted publication date: 20200407 |