CN204353008U - A kind of electricity supply and control circuit of electrostatic precipitator - Google Patents
A kind of electricity supply and control circuit of electrostatic precipitator Download PDFInfo
- Publication number
- CN204353008U CN204353008U CN201420804158.XU CN201420804158U CN204353008U CN 204353008 U CN204353008 U CN 204353008U CN 201420804158 U CN201420804158 U CN 201420804158U CN 204353008 U CN204353008 U CN 204353008U
- Authority
- CN
- China
- Prior art keywords
- resistor
- control circuit
- electrostatic precipitator
- electrode
- discharge electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Electrostatic Separation (AREA)
Abstract
The utility model relates to a kind of electricity supply and control circuit of electrostatic precipitator, described electrostatic precipitator is provided with the first electrode pad region and the second electrode pad region that are made up of polylith battery lead plate respectively, discharge electrode is provided with between adjacent electrode plates, described control circuit connects with discharge electrode, described control circuit comprises supply module, first centrally connected power supply bus, second centrally connected power supply bus, first resistor and the second resistor, described supply module connects with the first resistor and the second resistor respectively, the first described resistor connects with each discharge electrode in the first electrode pad region respectively, the second described resistor connects with each discharge electrode in the second electrode pad region respectively.Compared with prior art, the resistor in the utility model can suppress the peak point current of 20 to 30 orders of magnitude produced when electric spark occurs in electrostatic precipitator; Reduce electric spark peak point current, alleviate electrode and damage and make electric field advantage such as recovery rapidly after electric spark.
Description
Technical field
The utility model relates to a kind of dust arrester, especially relates to a kind of electricity supply and control circuit of electrostatic precipitator.
Background technology
Electrostatic precipitator adopts static electric field from air-flow, to remove particle, such as boiler flue gas.Deduster can be removed the charged particle in air-flow but not affect air-flow.Electrostatic precipitator has the feature that pressure drop is little, electrical energy demands is few and operating cost is low usually.Use electrostatic precipitator in the boiler, between high voltage discharge electrode and the battery lead plate of ground connection, maintain a highfield, electrode vertical is arranged side by side.Flue gas between the corona ionic discharge pole that high pressure produces and battery lead plate.Flying dust in flue gas and other particles are ionized.Electric field delivers to battery lead plate electronegative particle.Knock battery lead plate with vibrator at set intervals and remove the particle collected, and fall into ash bucket and remove.
Electric spark can be produced between discharge electrode and battery lead plate.Electric spark inhibits the ionization of electrostatic precipitator.Produce spark when ionized gas in deduster and cause partial breakdown, electric current between electrode can be caused to rise fast and Voltage Drop.
Electric spark in electrostatic precipitator can reach ampere up to ten thousand, and deduster normal operating current is no more than 2 amperes.Spark between electrode can produce a current channel, has upset CURRENT DISTRIBUTION in-between the electrodes.Electric spark can damage electrode and the miscellaneous part of electrostatic precipitator inside.The electric current produced by electric spark and the Rapid Variable Design of voltage also can damage the electric component in deduster.Seek a kind of method and apparatus reducing the impact of electric spark in electrostatic precipitator is the direction that people make great efforts always.
Utility model content
The purpose of this utility model is exactly provide a kind of electricity supply and control circuit of electrostatic precipitator to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of electricity supply and control circuit of electrostatic precipitator, described electrostatic precipitator is provided with the first electrode pad region and the second electrode pad region that are made up of polylith battery lead plate respectively, discharge electrode is provided with between adjacent electrode plates, described control circuit connects with discharge electrode, it is characterized in that, described control circuit comprises supply module, first centrally connected power supply bus, second centrally connected power supply bus, first resistor and the second resistor, described supply module connects with the first resistor and the second resistor respectively, the first described resistor connects with each discharge electrode in the first electrode pad region respectively, the second described resistor connects with each discharge electrode in the second electrode pad region respectively.
Described supply module comprises AC power, the Transformer Rectifier circuit of connecting successively.
Described Transformer Rectifier circuit comprises the transformer and full-bridge rectifier that connect successively.
Also comprise AVC unit, this AVC power supply is connected on the node between Transformer Rectifier circuit and resistor.
The resistance of described resistor is chosen within the scope of 100 to 1000 ohm.
The better selection range of resistance of described resistor is in 300 to 400 ohm.
By concentrating earth bus to connect between all battery lead plates.
Compared with prior art, the utility model resistor can suppress the peak point current of 20 to 30 orders of magnitude produced when electric spark occurs in electrostatic precipitator; Reduce electric spark peak point current, alleviate electrode and damage and electric field is recovered rapidly after electric spark; The electric current of electrode is flow through when adopting resistor restriction electric spark to occur; Resistor also can make the electric field between the electric spark emergence period between electrode collapse and reduce to minimum.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model battery lead plate arrangement schematic diagram;
Fig. 3 is the utility model control circuit figure.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Fig. 1 is electrostatic precipitator schematic diagram of the present utility model.Battery lead plate 2 parallel vertical is positioned over flowing gas direction, reduces the air drag of gas flowing as far as possible.When gas is by battery lead plate 2, electronegative particle is collected in battery lead plate 2 on the surface.Mutually isolated 23 centimetres to 46 centimetres of two-plate.
Deduster is a rectangular housing 1, one end smoke inlet 11 and other end flue outlet 13.Battery lead plate 2 is vertically placed in ventilation cavity 12.Be particulate emission bucket 14 below battery lead plate 2, particle drops from battery lead plate 2 and departs from deduster.Battery lead plate 2 pressed close to by vibrator 6, and is placed on the top of deduster, and vibrator 6 makes vibrator move and raps.Vibrator 6 makes vibrator shake battery lead plate 2 periodically, shakes out particle and fall into discharge bucket 14 from plate plate.Particle is laid down by discharge bucket 14 bottom opening.
A high voltage source.Such as power module 4 is arranged on the top of deduster, and provides power supply for each group of discharge electrode 3 and battery lead plate 2.This power supply is generally discharge electrode 3 and provides direct current (DC), makes the air gap between the battery lead plate 2 of discharge electrode 3 and ground connection form an electric field.
Fig. 2 is a structural representation, the top view that a part of internal discharge pole 3 illustrating electrostatic precipitator is arranged between battery lead plate 2.Form electric field between discharge electrode 3 and battery lead plate 2, electric field makes flowing gas produce corona 31 and ionizes the gas by deduster.Ionization makes the particle 7 in gas charged.Charged particle in electrode both sides absorb by battery lead plate 2.According to the electric charge on pole plate and particle charge opposite characteristic, powder collection in battery lead plate 2 side.By vibrating electrode plate, particle falls from battery lead plate 2 and is collected in bucket 14 and is laid down.
Electrostatic precipitator, from certain meaning, is the capacitor formed between the battery lead plate 2 of conductive discharge pole 3 and the flowing gas insulated and conduction.Voltage difference between discharge electrode 2 and battery lead plate 2 forms electric field on flowing gas.Voltage difference represents capacitor in charging.Between discharge electrode and collecting plate, electric spark 8 represents capacitor discharge and produces electric field breakdown.Electric spark 8 can produce short-time pulse big current, and electric current can reach the training of a little Wan An, and in a circuit normally run, electric current is approximately 2 amperes, usually not higher than 5 amperes.
When an electric spark 8 produces, produce electric field between discharge electrode 3 and battery lead plate 2 and fall and cause impulse grounding electric current.Electric component in electric spark meeting injury discharge pole 3, battery lead plate 2 and deduster.One also needs the electric field that recovers in flowing gas in short-term after electric spark and removes suspended particulate.
Fig. 3 is electricity supply and control circuit diagram of the present utility model, electrostatic precipitator is provided with the first electrode pad region and the second electrode pad region that are made up of polylith battery lead plate 2 respectively, discharge electrode 3 is provided with between adjacent electrode plates 2, described control circuit connects with discharge electrode 3, described control circuit comprises supply module, first centrally connected power supply bus, second centrally connected power supply bus, first resistor 51 and the second resistor 52, described supply module connects with the first resistor 51 and the second resistor 52 respectively, the first described resistor 51 connects with each discharge electrode 3 in the first electrode pad region respectively, the second described resistor 52 connects with each discharge electrode 3 in the second electrode pad region respectively.
Described supply module 4 comprises AC power 41, the Transformer Rectifier circuit 42 of connecting successively.Described Transformer Rectifier circuit 42 comprises the transformer 421 and full-bridge rectifier 422 that connect successively.
The utility model also comprises AVC unit, and this AVC power supply is connected on the node between Transformer Rectifier circuit 422 and resistor 5.The resistance of described resistor is chosen within the scope of 100 to 1000 ohm.The resistance of optimum described resistor is chosen within the scope of 300 to 400 ohm.By concentrating earth bus 9 to connect between described polylith battery lead plate.
Resistors in series 5 comprises: the resistor 5 of connecting with discharge electrode 5, and the damage of main protection deduster intraware, namely suppresses electric spark and flying fox that deduster intraware is corroded minimum.Electric field: one group of discharge electrode 3 and corresponding battery lead plate 2, can use a single-phase rectifier transformer or dc source in deduster, control field current with automatism voltage control device, automatism voltage control device secondary voltage can indicate where occur electric spark.When spark occurs, electric field collapse can produce dash current over the ground by discharge electrode 3 and battery lead plate 2 loop, and electric field need recover in short-term and remove suspended particulate.
Resistor 5 to be arranged on high voltage support frame and to connect with discharge electrode.By resistor 5, the electric current that can make electric field that collapse and generation occur is only limitted to single discharge electrode.
Claims (7)
1. the electricity supply and control circuit of an electrostatic precipitator, described electrostatic precipitator is provided with the first electrode pad region and the second electrode pad region that are made up of polylith battery lead plate respectively, discharge electrode is provided with between adjacent electrode plates, described control circuit connects with discharge electrode, it is characterized in that, described control circuit comprises supply module, first centrally connected power supply bus, second centrally connected power supply bus, first resistor and the second resistor, described supply module connects with the first resistor and the second resistor respectively, the first described resistor connects with each discharge electrode in the first electrode pad region respectively, the second described resistor connects with each discharge electrode in the second electrode pad region respectively.
2. the electricity supply and control circuit of a kind of electrostatic precipitator according to claim 1, is characterized in that, described supply module comprises AC power, the Transformer Rectifier circuit of connecting successively.
3. the electricity supply and control circuit of a kind of electrostatic precipitator according to claim 2, is characterized in that, described Transformer Rectifier circuit comprises the transformer and full-bridge rectifier that connect successively.
4. the electricity supply and control circuit of a kind of electrostatic precipitator according to claim 2, is characterized in that, also comprises AVC unit, and this AVC power supply is connected on the node between Transformer Rectifier circuit and resistor.
5. the electricity supply and control circuit of a kind of electrostatic precipitator according to claim 1, is characterized in that, the resistance of described resistor is chosen within the scope of 100 to 1000 ohm.
6. the electricity supply and control circuit of a kind of electrostatic precipitator according to claim 5, is characterized in that, the better selection range of resistance of described resistor is in 300 to 400 ohm.
7. the electricity supply and control circuit of a kind of electrostatic precipitator according to claim 1, is characterized in that, by concentrating earth bus to connect between all battery lead plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804158.XU CN204353008U (en) | 2014-12-17 | 2014-12-17 | A kind of electricity supply and control circuit of electrostatic precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420804158.XU CN204353008U (en) | 2014-12-17 | 2014-12-17 | A kind of electricity supply and control circuit of electrostatic precipitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204353008U true CN204353008U (en) | 2015-05-27 |
Family
ID=53254506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420804158.XU Active CN204353008U (en) | 2014-12-17 | 2014-12-17 | A kind of electricity supply and control circuit of electrostatic precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204353008U (en) |
-
2014
- 2014-12-17 CN CN201420804158.XU patent/CN204353008U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201154327Y (en) | Three-zone dipolar loading electrostatic agglomeration dust remover | |
| CN101316659B (en) | Single stage electrostatic precipitator | |
| CN202475292U (en) | Electrostatic-precipitation high-frequency power supply control system | |
| CN107570324A (en) | A kind of air purifier for being applicable computer room | |
| CN205462739U (en) | Pipe electrostatic precipitators | |
| CN100551542C (en) | Plasmasphere frequency-conversion dirt catcher | |
| CN204469898U (en) | A kind of centralized Control circuit for electrostatic precipitator | |
| CN204469897U (en) | The control circuit of electrostatic precipitator | |
| CN203648705U (en) | Electrostatic dust collector with metal meshes | |
| CN204353008U (en) | A kind of electricity supply and control circuit of electrostatic precipitator | |
| CN202024412U (en) | Purification device with heating dedustion function | |
| CN2709906Y (en) | Cooling tower spray recovery device of coal-fired generation boiler | |
| CN204365476U (en) | Electrostatic precipitator | |
| CN107930852A (en) | A kind of communications equipment room of static electrification dedusting | |
| CN104475256A (en) | Method for inhibiting electric sparks of electrostatic dust collector by using resistor | |
| CN104475253A (en) | Electrostatic dust collecting device | |
| CN107971135A (en) | A kind of energy-saving communication machine room | |
| CN208321094U (en) | Electrostatic generator and electrostatic precipitator | |
| CN209715394U (en) | A kind of electrostatic precipitation strainer | |
| CN105665135A (en) | Dust remover | |
| CN104338614A (en) | Electric dust remover with conductive filter tanks | |
| CN205797495U (en) | A kind of high-voltage electrostatic dust-collecting structure of air purifier | |
| CN207287773U (en) | A kind of energy-saving communication machine room | |
| CN104437874A (en) | Control circuit for electrostatic dust removal device | |
| CN102175051B (en) | Purification device with heating and dust-removing functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |